Lab 3 Quiz

Question 1

Reflex

Answer 1

An involuntary, usually rapid, motor response to a stimulus

Question 2

Somatic reflex

Answer 2

A reflex that stimulates a skeletal (voluntary) muscle(s)

Question 3

Autonomic reflex

Answer 3

A reflex that stimulates smooth muscle, cardiac muscle, or glands. Autonomic reflexes regulate a variety of body functions

Question 4

3 Functional Classification of Neurons

Answer 4

1. Sensory (afferent) neuron
2. Interneuron
3. Motor (efferent) neuron

Question 5

Sensory (afferent) neuron

Answer 5

Carries information from periphery (senses) to the CNS

Question 6

Interneuron

Answer 6

Acts as link between sensory & motor neurons

Question 7

Motor neuron

Answer 7

Carries command from CNS to effector

Question 8

Sensory receptors

Answer 8

Detect stimuli originating from outside of or from within the body

Question 9

Somaticsensory receptors

Answer 9

Provide general sensory information originating from skin and skeletal muscle

Question 10

Visceral sensory receptors

Answer 10

Provide general sensory information originating from the visceral organs

Question 11

Cerebral Cortex

Answer 11

• superficial (2-4mm) layer of cerebrum
• integrates sensory information
• initiates motor output
• involved in emotions and intellectual processes

Question 12

Lobes of the Cortex

Answer 12

Frontal
Temporal
Occipital
Parietal

Question 13

Somatosensory Cortex

Answer 13

receives sensory information (nerve impulses) for touch, pain, temperature, and proprioception

Question 14

Areas of the body with more _______ have greater representation in cortex.

Answer 14

Sensory receptors

Question 15

Proprioception

Answer 15

sensation of where body is in space, necessary to sense body movements and relative position of body parts to one another

Question 16

3 Structural Classification of Neurons

Answer 16

1. Unipolar
2. Multipolar
3. Bipolar