Neuro and sensory systems pp3 Flashcards
Mechanoreceptors that:
Maintain rotational equilibrium detect what?
Detect rotational and/or angular movements of the head
Mechanoreceptors that
Maintain gravitational equilibrium detect what?
Detect straight-line movements of the head in any direction
Chemoreceptors are responsible for?
taste and smell
Chemoreceptors are sensitive to are sensitive to chemical substances in:? 3
foods we eat
liquids we drink
air we breathe
Chemoreception is found in nearly all animals, and is believed to relate to the most primitive senses (T/F)
true
Chemoreception is Essential for survival: eating, protection, and reproduction (T/F)
true
In adult humans, ~3000 taste buds are located in
primarily on the tongue
Some isolated bud are on the hard palate, the pharynx, and the epiglottis
Five primary tastes
Sweet, sour, salty, bitter, and umami
Taste buds are located throughout the tongue, although some regions have particular sensitivities (T/F)
true
In humans, sense of smell is dependent on 10-20 million what
olfactory cells
sense of smell is located where?
Located within olfactory epithelium
In the roof of the nasal cavity
Nerve fibers from olfactory cells lead to the same neuron in the olfactory bulb (T/F)?
true
The senses of taste and smell
Work together to create a combined effect
Interpreted by the cerebral cortex of the brain (T/F)?
true
3 layers of vision?
Sclera
Choroid
Retina
what is the Opaque outer layer
Fibrous layer covering most of the eye
In front of the eye, the sclera becomes the transparent cornea
Sclera
