Unit 13 general and special senses part 1

अब Quizwiz के साथ अपने होमवर्क और परीक्षाओं को एस करें!

incus

- auditory ossicle in the middle of the others - anvil - B

external auditory canal

- canal in the external ear that extends 2.5 cm from the auricle to the tympanic membrane

semicircular canals

- canals situated at right angles to one another that maintain equilibrium - orientation allows them to sense rotational movements of the head and body - structures work together with organs of the vestibule and transmit impulses down the vestibular portion of the vestibulocochlear nerve

tympanic membrane

- eardrum - thin sheet of epithelium and connective tissue that separates the outer ear from the middle ear

vestibule

- egg shaped bony cavity in the inner ear that houses two structures responsible for equilibrium: the saccule and utricle which both transmit impulses down the vestibular portion of the vestibulocochlear nerve

circumvallate papillae

- large papillae that houses taste buds - projections located at the posterior aspect of the tongue, arranged in a V shape - B

malleus

- largest auditory ossicle, closed one to the tympanic membrane - looks like a hammer

stapes

- lateral auditory ossicle in middle ear - looks like a stirrup

olfactory nerve

- looks like the bristles of a toothbrush - axons of olfactory receptor cells that penetrate the holes in the cribiform place to synapse on the olfactory bulb

olfactory tract

- looks like the handle of a toothbrush

olfactory bulb

- looks like the head of a toothbrush - where axons of olfactory receptor cells synapse - sends the impulses of the axons of the olfactory tract to the olfactory cortex

middle ear

- one of the three regions in the ear - small air-filled cavity within the temporal bone that houses tiny bones called the auditory ossicles - also includes the pharyngotempanic tube

External ear

- one of the three regions of the ear - begins with the auricle, a shell shaped structure composed of elastic cartilage that surround the opening to the external auditory canal

inner ear

- one of the three regions of the ear that contains sense organs for both hearing and equilibrium - consists of cavities filled with a fluid that contains a series of membranes that contain an even thicker fluid - three regions: vestibule, semicircular canals, and cochlea

foliate papillae

- papillae that contain taste buds primarily during childhood - "ridges" located on the lateral aspects of the tongue

fungiform papillae

- papillae that houses taste buds - scattered over the surface of the tongue especially the tip

papillae

- projections from the tongue that house tastebuds where taste receptors are located 3 types: fungiform, foliate, and circumvallate

Olfaction

- sense of smell - relies on chemoreceptors to relay information about environment to the brain that are located in the roof of the nasal cavity

gustation

- sense of taste

auditory ossicles

- smallest bones in the body housed in the middle ear - transmit vibrations from the tympanic membrane to the inner ear through a structure called the oval window - include three bones: the malleus, incus, and stapes

cochlea

- spiral bony canal that contains an organ with hair cels that transmit sound impulses to the cochlear portion of the vestibulocochlear nerve - has a hole in its lateral wall that plays a role in allowing the perilymph in the cochlea to vibrate

pharyngotympanic tube

- structure in the middle ear that connects the middle ear to the pharynx or throat - also equalizes pressure in the middle ear

olfactory epithelium

- the tan that is between the bristles of the toothbrush - small patch in the rood of the nasal cavity

auricle

- visible part of the ear - shell shaped structure composed of elastic cartilage that surrounds the opening to the external auditory canal

saccule

structure in the vestibule in the inner ear that transmits impulses down the vestibular portion of the vestibulocochlear nerve - next to the cochlea

utricle

structure in the vestibule in the inner ear that transmits impulses down the vestibular portion of vestibulocochlear nerve


संबंधित स्टडी सेट्स

Conditionnel Passé et Futur Antérieur

View Set

ECON201 - MICROECONOMICS MIDTERM 2

View Set

Chapter 21: Antidepressant Agents

View Set

Health Research Quiz 1 Practice Questions

View Set

Unit: 1. INTEGERS Assignment: 27. Review

View Set

Plant Anatomy and Nutrient Acquisition

View Set

Module 2 Section I: Supplier Relationship Management (SRM)

View Set

The Reconstruction Era: 1865-1877

View Set