test 3 chapters 35 & 36

Question 1

another name for the pituitary gland is:

a. the master gland
b. the hypothalamic gland
c. the prostate gland
d. the senior gland

Answer 1

a. the master gland

Question 2

the two main types of cells in your brain are:

a. glial cells and astrocytes
b. neurons and axons
c. genes and peripheral cells
d. neurons and glial cells

Answer 2

d. neurons and glial cells

Question 3

which cells specialize in receiving and transmitting electrical signals?

a. glial cells
b. neurons
c. dendrites
d. astrocytes

Answer 3

b. neurons

Question 4

the colour of gray is to ______ as the colour of white is to _______.

a. myelin sheath; neuron cell bodies
b. neuron cell bodies; myelinated axons
c. synapses; terminal end bulbs
d. dendrites; neuron cell bodies

Answer 4

b. neuron cell bodies; myelinated axons

Question 5

of the 31 pairs of nerves that emerge from the spinal cord, which are in the region of neck?

a. Sacral c. Cervical
b. Lumbar d. thoracic

Answer 5

c. cervial

Question 6

in a healthy neurone before an action potential occurs:

a. inside of the axon is + changed; outside - charged
b. chemical gates are open to sodium ions
c. sodium pumps are highly active causing the refractory period
d. inside of the axon is - charged; the outside is + charged

Answer 6

D. inside of the axon is - charged; the outside is + charged

Question 7

a stroke patient suffers damage to the foremost part of his parietal lobe. knowing the functions of the major brain regions, his damage may appear as problems with

a. movement
b. emotion
c. speech
d. sensation

Answer 7

d. sensation

Question 8

steve a 10 yr old, is doing a “karate chop” to the base of the skull on the back of the neck of his younger brother. their mother yells “stop that Steve!!” what would be the best explanation for his mother’s protest?

Answer 8

the brainstem is there and it controls vital reflexes. damage to this area may be fatal

Question 9

the movements of a ballet dancer are due to the coordination performed largely by the:

a. medulla
b. cerebellum
c. hypothalamus
d. pons

Answer 9

b. cerebellum

Question 10

the strip of cortex in the rear of the frontal lobe that is involved in the initiation of all voluntary movement is called:

Answer 10

the motor cortex

Question 11

a heavy concentration of cones can be found in:

Answer 11

the fovea

Question 12

the _______ theory identifies three distinct types of cones in the retina.

a. trichromatic
b. trioptic
c. triconical
d. triangular

Answer 12

a. trichromatic

Question 13

which type of muscle cell has often more than one nucleus

a. smooth
b. skeletal
c. cardiac

Answer 13

b. skeletal

Question 14

which of the following ions is fundamental importance to the process of muscle contraction? In other words, without this ion muscles cannot contract.

a. Ca++
b. Mg++
c. Cl-
d. K+

Answer 14

a. Ca++

Question 15

which of the following is the correct term for an embryonic or immature bone cell?

a. osteoblast
b. osteocyte
c. osteoclast
d. osteon

Answer 15

a. osteoblast

Question 16

which type of substance is stronger and more dense?

a. compact bone
b. spongy bone
c. cartilage
d. tendon

Answer 16

a. compact bone

Question 17

the deep infoldings of the muscle fiber membranes that conduct action potentials are called

Answer 17

T tubules

Question 18

osteons contain all of the following except

a. blood vessels
b. concentric layers of bone
c. osteocytes
d. calcium phosphate crystals
e. intervertebral discs

Answer 18

e. intervertebral discs

Question 19

how many bones does the average young adult have, excluding the ossicles

Answer 19

200

Question 20

the smallest bones of the human body can be found in the hands and feet. T/F

Answer 20

False

Question 21

the hip joint and shoulder are the most common examples of sliding joints. T/F

Answer 21

False