Which of the following is NOT a function of Pacinian corpuscles?

• a) Detecting light touchb) Responding to sustained pressurec) Detecting pressure over a large aread) Providing tactile feedback during joint movements

a) Detecting light touch

Explain the difference between rods and cones in the retina. Include their location and function

Rods are more numerous, located on the periphery of the retina, and responsible for night vision; cones are concentrated in the fovea and provide color vision

Meissner's corpuscles are responsible for detecting heat sensations.

• True
• False

false

The receptors responsible for detecting pain are called __________

Nociceptors

Which of the following thermoreceptors detects cold sensations?
a) Ruffini’s end organ
b) Meissner’s corpuscles
c) End bulb of Krause
d) Pacinian corpuscles

c) End bulb of Krause

Describe the function of the cornea and how it contributes to vision

The cornea helps focus light entering the eye and contributes to the overall refractive power of the eye.

The fovea is responsible for:
a) Color vision in dim light
b) Sharp central vision
c) Detecting sound
d) Night vision

b) Sharp central vision

The optic nerve connects the retina to the brain and contains photoreceptors.

• True
• False

false

The clear, watery fluid produced by the ciliary body that fills the space between the cornea and lens is called _________

Aqueous humor

function Sclera

Provides the white outer covering of the eye

function Pupil

Regulates the amount of light entering the eye

function Lens

Focuses light onto the retina

function Retina

Contains photoreceptors for vision

function Choroid

Pigmented layer, responsible for night shine in nocturnal mammals

The semicircular canals are responsible for detecting:
a) Sound vibrations
b) Head position and movement
c) Air pressure changes
d) Vibrations in the cochlea

b) Head position and movement

What is the function of the Eustachian tube in the middle ear?

• The Eustachian tube equalizes air pressure in the middle ear with atmospheric pressure.

The stapes is the first bone in the ossicular chain of the middle ear.

• True
• False

false

The coiled, snail-shaped structure in the inner ear that contains hair cells for hearing is called the _________

cochlea

Malleus

b) Vibrates in response to sound waves

Cochlea

a) Transduces sound waves into neural signals

Tympanic membrane

b) Vibrates in response to sound waves

Vestibule

c) Connects the middle ear to the throat

Saccule

d) Helps detect up or down movement

Which part of the brain is primarily responsible for motor control and higher cognitive functions like thinking and decision-making?
a) Parietal lobe
b) Cerebellum
c) Frontal lobe
d) Medulla oblongata

c) Frontal lobe

The corpus callosum connects the two hemispheres of the cerebrum and allows for communication between them.

• True
• False

true

• What are the functions of the medulla oblongata? List at least three.

Regulates breathing, heart rate, swallowing, and digestion

The cerebellum coordinates balance and movement and is located below the ____________.

Cerebrum

Temporal lobe

d) Involved in hearing and smell

Occipital lobe

c) Responsible for vision

Pons

b) Coordinates involuntary actions like breathing

Limbic system

a) Regulates emotions like aggression and feeding

Cerebrum

e) Involved in thought, motor control, and cognitive functions