Unit 4 + Comprehnesive

Question 1

What do we call neuronal processes that transmit membrane potentials away from the neuronal cell body

Answer 1

axon

Question 2

What type of glial cell is responsible for producing and circulating cerebrospinal fluid?

Answer 2

Ependymal cell

Question 3

What do we call the period during which an action potential cannot be initiated, regardless of the strength of the stimulus

Answer 3

absolute refractory period

Question 4

Hyperpolarization is the result of the excessive exit of which ion from the cell?

Answer 4

potassium

Question 5

In the physioex exercise, what was the effect of lidocaine on the nerve?

Answer 5

inhibition

Question 6

What is the functional classification for neurons that carry information from the central nervous system to peripheral effector organs?

Answer 6

motor

Question 7

What type of glial cell is responsible for myelinating axons in the peripheral nervous system?

Answer 7

schwann cell

Question 8

In the physioex exercise, what was the effect of ether on the nerve?

Answer 8

inhibition

Question 9

Depolarization is the result of the rapid entry of which ion into the cell?

Answer 9

Sodium

Question 10

What are clusters of neuronal cell bodies in the central nervous system called?

Answer 10

nuclei

Question 11

What is the functional classification for neurons that carry information from perpheral receptors to the central nervous system?

Answer 11

sensory

Question 12

What do we call the period during which initation of an action potential requires a higher than normal threshold stimulus?

Answer 12

relative refractory period

Question 13

What do we call neuronal processe that carry receptors for neurotransmitters and that transmit membrane potentials toward the neuronal cell body?

Answer 13

dendrites

Question 14

What is the smallest stimulus that is capable of initating an action potential called?

Answer 14

threshold

Question 15

What type of glial cell is responsible for myelinating axons in the central nervous system?

Answer 15

oligodendrocyte

Question 16

What are clusters of neuronal cell bodies in the peripheral nervous system called?

Answer 16

ganglia

Question 17

What type of glial cell is responsible for supporting neurons and maintaining the blood/brain barrier?

Answer 17

astrocyte

Question 18

What fluid fills the scala tympani?

Answer 18

perilymph

Question 19

The bending of light as it passes from a material of one density to a material of a different density is called?

Answer 19

refraction

Question 20

What cranial nerve supplies the inferior rectus muscle of the eye?

Answer 20

Occulomotor

Question 21

To which portion of the ear (outer, middle, inner) does the cochlea belong?

Answer 21

Inner

Question 22

Which of the three tunics (layers) does the cornea belong to?

Answer 22

Fibrous

Question 23

With which sense (hearing, static equilibrium, dynamics equilibrium) is the semicircular canal associated?

Answer 23

dynamic

Question 24

The term “femoral” refers to which region of the body?

Answer 24

thigh

Question 25

The hand is ___ to the elbow

Answer 25

distal

Question 26

The nose is ___ to the ears

Answer 26

medial

Question 27

You are examining a microscope under the 10X objective lens and you switch to the 4X objective lens. The depth of field will:

Answer 27

increase

Question 28

Which objective lens has the greater depth of field: 10X or 40X?

Answer 28

10X

Question 29

Given the following physiological requirements at a particular location within the body, name the specific tissue type that would most likely be found there:

This material must be able to transport material all throughout the body.

Answer 29

Blood

Question 30

What do we call an epithelial tissue that is one cell layer thick and is composed of flattened cells?

Answer 30

Simple squamous epithelial tissue

Question 31

What primary type of tissue is excitable but not contractile?

Answer 31

Nervous

Question 32

What minute, finger-like projections of the cell membrane serve to increase the surface area of the cell for absorption?

Answer 32

Microvilli

Question 33

a site for muscle or ligament attachment that consists of a sharp, slender, often pointed projection is a:

Answer 33

spine

Question 34

The central canal that runs down the center of an osteon is also called the:

Answer 34

central canal

Question 35

What functional type of articulation is a symphysis?

Answer 35

amphiarthrosis

Question 36

What is the name of the type of synovial joint that has rotational movement around a single axis that accomplishes flexion and/or extension at the joint?

Answer 36

hinge

Question 37

A single motor neuron, along with all of the muscle fibers that it innervates, is called:

Answer 37

motor unit

Question 38

Define “insertion” as it applies to skeletal muscles

Answer 38

moveable site of attachment

Question 39

What fluid fills the scala vestibuli?

Answer 39

perilymph

Question 40

A blurred area in the field of vision caused by unequal curvatures of the lens or cornea is called

Answer 40

Astigmatism

Question 41

Which cranial nerve supplies the inferior oblique muscle of the eye?

Answer 41

occulomotor

Question 42

Which of the three tunics (layers) does the sclera belong to?

Answer 42

Fibrous

Question 43

To which portion of the ear does the acoustic meatus belong?

Answer 43

Outer

Question 44

With which sense is the utricle associated?

Answer 44

static equilibrium

Question 45

The proper anatomical term for the foot is

Answer 45

pedal