Question

When you experience changes in light, sound, and temperature, which cells send signals toward the central nervous system? (1 point)
Responses

motor neurons
motor neurons

axons
axons

sensory neurons
sensory neurons

dendrites
GPT-4o mini
The correct answer is **sensory neurons**. Sensory neurons are responsible for detecting changes in the environment, such as light, sound, and temperature, and sending signals towards the central nervous system.
nope
Which component can only be found in the peripheral nervous system? (1 point)
Responses

axons
axons

dendrites
dendrites

spinal cord
spinal cord

sensory neurons
GPT-4o mini
The correct answer is **axons**. While axons are found in both the central nervous system (CNS) and the peripheral nervous system (PNS), they are specifically the extensions of neurons that make up the nerves in the PNS. The spinal cord is part of the CNS, while dendrites and sensory neurons are found in both systems. However, axons can be attributed specifically to the peripheral system when discussing the context of peripheral nerves. Therefore, to clarify within the specific context, the term that more closely refers to components primarily associated with the peripheral nervous system would be **axons** as they are part of peripheral nerves. However, generally speaking, if the question is about what is exclusive to the PNS, it could lead to some ambiguity since axons are ultimately a part of both systems.
nope
Which sensory receptors would allow you to tell the difference between sweet and sour?(1 point)
Responses

photoreceptors
photoreceptors

mechanoreceptors
mechanoreceptors

chemoreceptors
chemoreceptors

thermoreceptors
GPT-4o mini
The correct answer is **chemoreceptors**. Chemoreceptors are the sensory receptors that detect chemical substances, allowing you to differentiate between different tastes, such as sweet and sour.
nope
A patient is unable to tell the difference between red and green. Which receptors are probably not functioning properly in the patient?(1 point)
Responses

rods
rods

cones
cones

Merkel's disks
Merkel's disks

Krause's corpuscles
GPT-4o mini
The correct answer is **cones**. Cones are the photoreceptors in the retina that are responsible for color vision. The inability to distinguish between red and green is typically associated with a malfunction of the cone cells, particularly the red (long-wavelength) and green (medium-wavelength) cones.
nope
Most of the inside of the eye is known as the vitreous body. It is made primarily of vitrosin, a form of collagen. Collagen helps make up tendons, skin, and ligaments. This implies that, by volume, the eye is mostly made of what type of tissue?(1 point)
Responses

epithelial
epithelial

connective
connective

muscle
muscle

nerve
GPT-4o mini
The correct answer is **connective**. The vitreous body of the eye, primarily composed of vitrosin (a form of collagen), indicates that the eye is mostly made up of connective tissue. Collagen is a key structural protein found in various types of connective tissues throughout the body.
nope
Which statement correctly describes how we maintain homeostasis when we are tired? (1 point)
Responses

Our muscles weaken and move slowly.
Our muscles weaken and move slowly.

Our muscles send us a signal to stop moving.
Our muscles send us a signal to stop moving.

Our nervous system stops moving muscles.
Our nervous system stops moving muscles.

Our nervous system sends us a signal to rest.
GPT-4o mini
The correct answer is **Our nervous system sends us a signal to rest.** When we are tired, the nervous system communicates the need for rest, leading to feelings of fatigue and the desire to stop activity, helping to maintain homeostasis.