must study

Question 1

Perceptions

Answer 1

Any sensory stimuli of which humans, and perhaps other animals, become conscious

Question 2

Chemoreceptors

Answer 2

Sensory receptors responsible for taste and smell

Question 3

chemoreception is found almost universally in all animals

Answer 3

Thought to be the most primitive sense

Allows organisms to locate food, find a mate, detect dangerous environmental chemicals

Question 4

Stereoscopic vision (depth perception)

Answer 4

Found in animals with two eyes facing forward

Common in predators; also in humans

Question 5

Panoramic vision (no overlap of images)

Answer 5

Wide visual field

Common in prey animals

Question 6

Rods permit vision in

Answer 6

low light

Question 7

Cones permit vision in

Answer 7

BRIGHT LIGHT

Question 8

Stimulation of rod cells results in

Answer 8

blurred vision

Question 9

Vertigo

Answer 9

Feeling that a person or their environment is moving when no motion is occurring

Question 10

What is controlled by the cillary muscle

Answer 10

shape of lens

Question 11

3 layers of human eye

Answer 11

sclera, choroid, retina

Question 12

visual accommodation

Answer 12

focusing starts at the cornea and continues as rays pass lens, providing this

Question 13

blind spot

Answer 13

Where optic nerve exits retina, no vision is possible

Question 14

Spaces between meninges are filled with

Answer 14

cerebrospinal fluid.

Question 15

Parkinson disease

Answer 15

is a brain disorder characterized by tremors, speech, and difficulty standing and walking.
Results from loss of dopamine-producing cells in the basal nuclei

Question 16

Pons

Answer 16

Contains axons that form a bridge between the cerebellum and the rest of the central nervous system

Question 17

Somatic system

Answer 17

voluntary)
Includes paired cranial nerves and spinal nerves
Gather information from sensors and conduct decisions to effectors
Controls the skeletal muscles

Question 18

Autonomic system

Answer 18

usually involuntary)
Controls the smooth muscles, cardiac muscles, and glands
Innervates all internal organs
Divided into two divisions
Sympathetic division
Parasympathetic division
Utilizes two neurons and one ganglion for each impulse

Question 19

Dendrites

Answer 19

receive signals from sensory receptors or other

neurons.

Question 20

Motor (efferent) neurons

Answer 20

Accept nerve impulses from the CNS Transmit them to muscles or glands Multipolar

Question 21

Acetylcholine

Answer 21

In CNS and PNS, excites skeletal but inhibits cardiac muscle