It plays an important role in the human ear canal, assisting in cleaning and lubrication, and also provides some protection from bacteria, fungi, and insects.Excess or impacted cerumen can press against the eardrum and/or occlude the external auditory canal and impair hearing, causing conductive In males, the urethra allows for the expulsion of both urine and semen. The human nose is the most protruding part of the face.It bears the nostrils and is the first organ of the respiratory system.It is also the principal organ in the olfactory system.The shape of the nose is determined by the nasal bones and the nasal cartilages, including the nasal septum which separates the nostrils and divides the nasal cavity into two. The urethra is a hollow tube positioned between the urinary bladder and urinary meatus which takes urine stored in the bladder out of the body. The mucocutaneous zone occurs where the outer and inner foreskin meet. Gross anatomy. The inferior nasal concha is the longest and broadest of the three conchae.Unlike the superior and middle, the inferior nasal concha is formed by an independent bone (of the same name). In human females and other primates, the urethra connects to the urinary meatus above the vagina, whereas in marsupials, the female's urethra empties into the urogenital sinus. The mastoid process is a smooth conical projection of bone located at the base of the mastoid area of the temporal bone. Cranial nerves are the nerves that emerge directly from the brain (including the brainstem), of which there are conventionally considered twelve pairs.Cranial nerves relay information between the brain and parts of the body, primarily to and from regions of the head and neck, including the special senses of vision, taste, smell, and hearing.. The inner surface of the concha is covered by a mucous membrane that contains large vascular spaces that can change in size in order to control the width of the nasal cavity. The glans penis, commonly referred to as the glans, is a bulbous structure at the distal end of the human penis that is the most sensitive erogenous zone and primary anatomical source of male sexual pleasure. The vulval vestibule is a part of the vulva between the labia minora into which the urinary meatus (urethral Development. Definition. In general, vestibule is a small space or cavity at the beginning of a canal. Cetacea (/ s t e /; from Latin cetus 'whale', from Ancient Greek () 'huge fish, sea monster') is an infraorder of aquatic mammals that includes whales, dolphins, and porpoises.Key characteristics are their fully aquatic lifestyle, streamlined body shape, often large size and exclusively carnivorous diet. The stylomastoid foramen is a small, round opening located on the inferolateral aspect of the temporal bone, between the root of the styloid process and the mastoid process.It serves as the external opening of the facial canal of the temporal bone, which transmits the facial nerve and the stylomastoid artery.. The temporal bone is ossified from eight centers, exclusive of those for the internal ear and the tympanic ossicles: one for the squama including the zygomatic process, one for the tympanic part, four for the petrous and mastoid parts, and two for the styloid process.Just before the end of prenatal development [Fig. The structure of the external auditory canal is the same in all mammals. Rapid technological developments in this area mean that a flexible definition is appropriate. In humans and other mammals, the anatomy of a typical respiratory system is the respiratory tract.The tract is divided into an upper and a lower respiratory tract.The upper tract includes the nose, nasal cavities, sinuses, pharynx and the part of the larynx above the vocal folds.The lower tract (Fig. External acoustic meatus Medically reviewed by the Healthline Medical Network The ear canal, also called the external acoustic meatus, is a passage comprised of bone and skin leading to the eardrum. Other features include the pudendal cleft, pubic hair, sebaceous glands, the vulval vestibule, and the urogenital triangle. WebMD's Sinuses Anatomy Page provides a detailed image and definition of the sinuses including their function and location. The definition of mechanically separated meat (MSM) should be a generic one covering all methods of mechanical separation. The stylomastoid foramen is a small, round opening located on the inferolateral aspect of the temporal bone, between the root of the styloid process and the mastoid process.It serves as the external opening of the facial canal of the temporal bone, which transmits the facial nerve and the stylomastoid artery.. In appearance it is a slightly curved tube that extends inward from the floor of the auricle, or The helicis major is a narrow vertical band situated upon the anterior margin of the helix.It arises below, from the spina helicis, and is inserted into the anterior border of the helix, just where it is about to curve backward. It is composed of central and peripheral portions. Definition/description [edit | edit source] A pelvic fracture is a disruption of the bony structures of the Pelvis. In humans and other mammals, the anatomy of a typical respiratory system is the respiratory tract.The tract is divided into an upper and a lower respiratory tract.The upper tract includes the nose, nasal cavities, sinuses, pharynx and the part of the larynx above the vocal folds.The lower tract (Fig. Mesangial cells are modified smooth muscle cells that lie between the capillaries. Sinuses are mucosa-lined airspaces within the bones of the face and skull.Each opens into the anterior part of the corresponding middle nasal meatus of the nose through the frontonasal duct which traverses the anterior part of the labyrinth of the ethmoid. Vestibular system anatomy The vestibular system is a somatosensory portion of the nervous system that provides us with the awareness of the spatial position of our head and body (proprioception) and self-motion (kinesthesia).). Rapid technological developments in this area mean that a flexible definition is appropriate. Contents. The biological and physical aspects of sexuality largely concern the human In anatomy, the orbit is the cavity or socket of the skull in which the eye and its appendages are situated. The outside of the foreskin is a continuation of the skin on the shaft of the penis, but the inner foreskin is a mucous membrane like the inside of the eyelid or the mouth. Like the eyelid, the foreskin is free to move after it separates from the glans, which usually occurs before or during puberty. External acoustic meatus Medically reviewed by the Healthline Medical Network The ear canal, also called the external acoustic meatus, is a passage comprised of bone and skin leading to the eardrum. The maxillary sinuses are innervated by the It is composed of central and peripheral portions. This involves biological, psychological, physical, erotic, emotional, social, or spiritual feelings and behaviors. They are situated deep in the bodies of the maxillae. Also learn about conditions, tests, and treatments affecting the sinuses. "Orbit" can refer to the bony socket, or it can also be used to imply the contents. Vestibule or Vestibulum can have the following meanings, each primarily based upon a common origin, from early 17th century French, derived from Latin vestibulum, -i n. "entrance court".. Anatomy. In addition it contains the cell bodies for fibers that gather sensory information from the nasal cavity, part of the soft palate, and the sinus cavities, the auricle and the external auditory meatus . It plays an important role in the human ear canal, assisting in cleaning and lubrication, and also provides some protection from bacteria, fungi, and insects.Excess or impacted cerumen can press against the eardrum and/or occlude the external auditory canal and impair hearing, causing conductive Cranial nerves are the nerves that emerge directly from the brain (including the brainstem), of which there are conventionally considered twelve pairs.Cranial nerves relay information between the brain and parts of the body, primarily to and from regions of the head and neck, including the special senses of vision, taste, smell, and hearing.. A pelvic fracture can occur by low-energy mechanism or by high-energy impact. The adventitia (advnt) is the outer layer of fibrous connective tissue surrounding an organ.. Cranial nerves are the nerves that emerge directly from the brain (including the brainstem), of which there are conventionally considered twelve pairs.Cranial nerves relay information between the brain and parts of the body, primarily to and from regions of the head and neck, including the special senses of vision, taste, smell, and hearing.. In the adult human, the volume of the orbit is 30 millilitres (1.06 imp fl oz; 1.01 US fl oz), of which the eye occupies 6.5 ml (0.23 imp fl oz; 0.22 US fl oz). includes the lower part of the larynx, the trachea, bronchi, bronchioles and the alveoli. includes the lower part of the larynx, the trachea, bronchi, bronchioles and the alveoli. The urethra (from Greek ourthr) is a tube that connects the urinary bladder to the urinary meatus for the removal of urine from the body of both females and males. This involves biological, psychological, physical, erotic, emotional, social, or spiritual feelings and behaviors. Bones protect the various other organs of the body, produce red and white blood cells, store minerals, provide structure and support for the body, and enable mobility.Bones come in a variety of shapes and sizes and have a complex internal and external structure. A pelvic fracture can occur by low-energy mechanism or by high-energy impact. The maxillary sinuses are innervated by the The inner surface of the concha is covered by a mucous membrane that contains large vascular spaces that can change in size in order to control the width of the nasal cavity. The peripheral portion of the vestibular system consists of the vestibular labyrinth, vestibular The structure of the external auditory canal is the same in all mammals. Definition. Such organs occur in many animals, both vertebrate and invertebrate, but males do not bear a penis in every animal species, and in those species in which the male does bear a so-called penis, the penises in the various species A pelvic fracture can occur by low-energy mechanism or by high-energy impact. The facial nerve exits the cranial cavity through the internal In human females and other primates, the urethra connects to the urinary meatus above the vagina, whereas in marsupials, the female's urethra empties into the urogenital sinus. external auditory canal, also called external auditory meatus, or external acoustic meatus, passageway that leads from the outside of the head to the tympanic membrane, or eardrum membrane, of each ear. A mucous membrane or mucosa is a membrane that lines various cavities in the body of an organism and covers the surface of internal organs. In addition it contains the cell bodies for fibers that gather sensory information from the nasal cavity, part of the soft palate, and the sinus cavities, the auricle and the external auditory meatus . It allows the attachment of muscles such as the occipitofrontalis muscle, as well as certain muscles of the neck like the sternocleidmastoid and splenius capitis muscles.. Mastoid process . The glans penis, commonly referred to as the glans, is a bulbous structure at the distal end of the human penis that is the most sensitive erogenous zone and primary anatomical source of male sexual pleasure. Urethra length differs in human females and males. The peripheral portion of the vestibular system consists of the vestibular labyrinth, vestibular The nose is one of the primary sensory organs responsible for the sense of smell, while it also plays major roles in respiration and speech production [1].The nasal cavity lies just behind the two nostrils and forms the interiors of the nose.. The definition of mechanically separated meat (MSM) should be a generic one covering all methods of mechanical separation. WebMD's Sinuses Anatomy Page provides a detailed image and definition of the sinuses including their function and location. In general, vestibule is a small space or cavity at the beginning of a canal. The mucocutaneous zone occurs where the outer and inner foreskin meet. The cranial nerves emerge from the central Spiral ganglion The spiral ganglion is the sensory ganglion of the cochlear branch of the vestibulocochlear nerve (CN VIII). The intrinsic muscles of the external ear are: . 3. Such organs occur in many animals, both vertebrate and invertebrate, but males do not bear a penis in every animal species, and in those species in which the male does bear a so-called penis, the penises in the various species The mastoid process is a smooth conical projection of bone located at the base of the mastoid area of the temporal bone. Because it is a broad term, which has varied with historical contexts over time, it lacks a precise definition. It plays an important role in the human ear canal, assisting in cleaning and lubrication, and also provides some protection from bacteria, fungi, and insects.Excess or impacted cerumen can press against the eardrum and/or occlude the external auditory canal and impair hearing, causing conductive This involves biological, psychological, physical, erotic, emotional, social, or spiritual feelings and behaviors. The facial nerve exits the cranial cavity through the internal A bone is a rigid organ that constitutes part of the skeleton in most vertebrate animals. The maxillary sinuses are the largest and the most inferior of the paranasal sinuses. ; The helicis minor is an oblique fasciculus, covering the crus helicis. The outer layer of connective tissue that surrounds an artery, or vein the tunica externa, is also called the tunica adventitia.. To some degree, its role is complementary to that of the serosa, which also provides a layer of tissue surrounding an organ. Sinuses are mucosa-lined airspaces within the bones of the face and skull.Each opens into the anterior part of the corresponding middle nasal meatus of the nose through the frontonasal duct which traverses the anterior part of the labyrinth of the ethmoid. Urethra length differs in human females and males. The human nose is the most protruding part of the face.It bears the nostrils and is the first organ of the respiratory system.It is also the principal organ in the olfactory system.The shape of the nose is determined by the nasal bones and the nasal cartilages, including the nasal septum which separates the nostrils and divides the nasal cavity into two. Contents. Human sexuality is the way people experience and express themselves sexually. Development. Each maxillary sinus is drained by one or more openings (maxillary ostia) into the middle nasal meatus.Similar to the frontal sinuses, the maxillary sinuses are also drained at the semilunar hiatus.. The maxillary sinuses are the largest and the most inferior of the paranasal sinuses. Each maxillary sinus is drained by one or more openings (maxillary ostia) into the middle nasal meatus.Similar to the frontal sinuses, the maxillary sinuses are also drained at the semilunar hiatus.. External acoustic meatus Medically reviewed by the Healthline Medical Network The ear canal, also called the external acoustic meatus, is a passage comprised of bone and skin leading to the eardrum. It allows the attachment of muscles such as the occipitofrontalis muscle, as well as certain muscles of the neck like the sternocleidmastoid and splenius capitis muscles.. Mastoid process . Because it is a broad term, which has varied with historical contexts over time, it lacks a precise definition. The nose is one of the primary sensory organs responsible for the sense of smell, while it also plays major roles in respiration and speech production [1].The nasal cavity lies just behind the two nostrils and forms the interiors of the nose.. In anatomy, a meatus (/ m i e t s /, mee-AY-ts), plural "meatus" or "meatuses", is a natural body opening or canal.. Meatus may refer to: . They are situated deep in the bodies of the maxillae. Earwax, also known as cerumen, is a yellowish, waxy substance secreted in the ear canals. Cetacea (/ s t e /; from Latin cetus 'whale', from Ancient Greek () 'huge fish, sea monster') is an infraorder of aquatic mammals that includes whales, dolphins, and porpoises.Key characteristics are their fully aquatic lifestyle, streamlined body shape, often large size and exclusively carnivorous diet. In humans and other mammals, the anatomy of a typical respiratory system is the respiratory tract.The tract is divided into an upper and a lower respiratory tract.The upper tract includes the nose, nasal cavities, sinuses, pharynx and the part of the larynx above the vocal folds.The lower tract (Fig.