Exam 2 - Sensory Organs Flashcards
What are chemical senses?
Those that detect particular molecules in the external or internal environment
Chemical senses that detect molecules outside the body include _______ and ______
Gestation (taste) ; olfaction (smell)
What is gustation?
The modality associated with dissolved substances contacting specialized receptor cells on the tongue and throat region
Taste buds are confined to specific forms of papillae (tiny projections), the _____, _____ and ______ ______, which are found on the tongue, soft palate, parts of the pharynx, and epiglottis of the larynx
Vallate ; foliate ; fungiform papillae
The receptors, simple called ____, are arranged in a group with supporting cells, a cluster that constitutes the _______
Taste cells ; taste buds
The 5 taste sensations
Sweet, salt, bitter, sour, umami
What does olfaction result from?
The detection of odorous substances aerosolized in the environment
Location of external ear
Extends from the exterior as far as the tympanic membrane (eardrum)
Location of the middle ear
Begins at the tympanic membrane (eardrum); it is an air-filled space within the temporal bone
Location of the inner ear
Housed within the temporal bone, comprising an elaborate fluid-filled system of chambers and canals
The three parts of the ear
The external, middle and inner ears
What is the vestibular system?
A complex neurological system that is concerned with maintaining a stable orientation in relation to gravity and while in motion
The receptor organs of the vestibular system are housed in the part of the membranous labyrinth known as the ______ ______
Vestibular apparatus
These receptor organs of the vestibular system ate the ______ of the utriculus and sacculus anf the ____ ______ of the semicircular ducts
Maculae ; cristae ampullares
Primary function of the eye
Collect and focus light upon the photosensitive retina
