kin 224 lab quiz 1

Question 0

XY Scatter Graph

Answer 0

-used when both sets of data are numerical and on a continuous scale

Question 1

What is in a figure legend?

Answer 1

• What kind of graph is it?
• What is the graph representing/illustrating?
• What is was the experimental subject, and how was it obtained?
• What is the trend/relationship?
• What is the physiological significance?

Question 2

Column Graph

Answer 2

• used when the independent variables are non numerical (such as treatment groups)
• IV on x-axis
• DV on y-axis

Question 3

plethysmograph

Answer 3

-record the pulses of blood moving into the arteries

Question 4

What finger do you record the pulse on?

Answer 4

middle finger

Question 5

Skin folds

Answer 5

rough estimate of total body fat

-relates to the relative amount of subcutaneous adipose tissue within the hypodermis

Question 6

Hypodermis

Answer 6

Important layer to mammals in maintaining homeostasis as it forms an insulating layer to retain heat

Question 7

Sensory receptors that are sensitive to change in tempurature are located in the

Answer 7

dermis of the skin

Question 8

Where do the sensory receptors send signals to?

Answer 8

Hypothalamus

Question 9

After signals are sent from the sensory receptors to the hypothalamus what happens?

Answer 9

-Cause physiological changes that alter blood flow (by altering the diameter of the arteries)

Question 10

Vasoconstriction

Answer 10

decreased blood flow

Question 11

Vasodilation

Answer 11

increased blood flow

Question 12

% pre-heat amplitude change equation

Answer 12

average HEAT amplitude/average PRE-HEAT amplitude

x100

Question 13

Mechanoreceptors

Answer 13

specialized nerve cells that respond to touch, pressure, sound, movement, and stretch

Question 14

Proprioceptors

Answer 14

internal mechanoreceptors that provide info about muscle position, contraction, movement & leg position in space

Question 15

Cockroach mechanoreceptors

Setae

Answer 15

short hairs

Question 16

Cockroach mechanoreceptors

Hair plates

Answer 16

bend adjoining surfaces of the cuticle contact each other in movement

Question 17

Cockroaches Mechanoreceptors

Campaniform sensilla

Answer 17

dome-like structures which are distorted with the movement of the spines that protrude from the surface of the sensilla, or with the movement of the leg

Question 18

Cockroaches mechanoreceptors

Chordotonal organs

Answer 18

structures under the cuticle which change in length when the joint of that organ is extended or flexed

Question 19

Stretch receptors

Answer 19

used to detect the position of the leg as the roach moves

Question 20

Firing rate

Answer 20

(action potentials/second) used within the CNS to monitor leg position

Question 21

High firing rate =

Answer 21

Large leg movement

Question 22

Low firing rate =

Answer 22

Small leg movement

Question 23

Sensory receptor adaptaion

Answer 23

if stimulus is prolonged in duration, the sensory receptor firing rate will decline over time

Question 24

Parts of the cockroach

Coxa

Answer 24

upper portion of the leg

Question 25

Parts of the cockroach

Trochanter

Answer 25

Knee

Question 26

Parts of the cockroach

Femur

Answer 26

thigh

Question 27

Parts of the cockroach

Tibia

Answer 27

shin

Question 28

Parts of the cockroach

tarsus

Answer 28

ankle & foot

Question 29

Types of sensory receptor adaptation

Phasic

Answer 29

firing rate ceases, or is greatly reduced when movement of the receptor stops, even though a new position is maintained

Question 30

Types of sensory reception adaptation

Tonic

Answer 30

action potentials continue for as long as the stimulus is maintained, slowly decreasing over time

Question 31

Types of sensory receptor adaptation

Phasictonic

Answer 31

initial response to a stimulus is a burst of action potentials, which is immediately followed by a large drop in firing rate