49+50 Motor and Sensory

Question 1

NERVES

Answer 1

In more complex animals, the axons of multiple nerve cells are often bundled together to form nerves. These fibrous structure channel and organize information flow through the nervous system.

Question 2

cephalization

Answer 2

a clustering of sensory neurons and interneurons at the anterior

Question 3

central nervous system(CNA)

Answer 3

a small brain and longitudinal nerve cords

Question 4

Spinal Cord

Answer 4

Runs along the vertebral column(the spine). Conveys information to and from the brain

Question 5

3 major regions of the vertebrate brain

Answer 5

forebrain, midbrain, hindbrain

Question 6

forebrain

Answer 6

olfactory bulb Activities: processing the olfactory input, sleep regulation, learning, and complex processing

Question 7

midbrain

Answer 7

cerebrum, routing of sensory input

Question 8

hindbrain

Answer 8

cerebellum, controls involuntary activities and coordinates motor activities

Question 9

neuronal plasticity

Answer 9

describes the ability of the nervous system to be modified after birth ex. memory formation

Question 10

short-term memory

Answer 10

accessed via the hippocampus

Question 11

long- term memory

Answer 11

stored in the cerebral hippocampus

Question 12

long-term potentiation (LTP)

Answer 12

a form of learning involving an increase in the strength of synaptic transmission, involves glutamate receptors

Question 13

Sensory and Motor Mechanisms

Answer 13

Detection/ Transduction, transmission, perception

Question 14

Reception

Answer 14

detection of stimullus

Question 15

Transduction

Answer 15

conversion of a psychical or chemical stimulus into an electrical signal(change in membrane potential)

Question 16

Mechanoreceptors

Answer 16

sensory receptors for touch, pressure, stretch, hearing, and balance

Question 17

electromagnetic receptors

Answer 17

sensory receptors for internal chemical and osmolarity sensing, taste, and smell

Question 18

Sensory information is _____ through the nervous system

Answer 18

transmitted

Question 19

invertebrates use _____ to detect gravity(determine up from down)

Answer 19

statocysts

Question 20

sarcomere

Answer 20

made of overlapping myosin and actin filaments

Question 21

rigor mortis

Answer 21

When the fibers are stuck in the contracted position, because of a lack of ATP at death

Question 22

Peripheral Nervous System

Answer 22

The parts of the nervous system outside of the brain and spine. So ganglia and nerve cords

Question 23

statocysts

Question 24

A neuron that transmits an impulse to the central nervous system after the neuron is stimulated by the environment is called a(n) __________.

Answer 24

motor protein

Question 25

Which of the following is specific to the central nervous system?

Answer 25

internuerons

Question 26

34. Which of the following occurs when you move from a bright area into a darkened room?

Answer 26

pupil expands