Phys Lab Exam 1

Front 1

receptors that respond to mechanical stimulation

Back 1

mechanoreceptors

Front 2

receptros that detect changes in temperature

Back 2

thermoreceptors

Front 3

receptors that detect light

Back 3

photoreceptors

Front 4

receptors that detect chemical informationn

Back 4

chemoreceptors

Front 5

name three major types of receptors

Back 5

mechano
thermo
photo
chemo

Front 6

name the sensory tranducers

Back 6

photo
thermo
chemo
mechano

Front 7

definition. converst information about environmental chnage into nerve signals that are transmitted to the brian fore interpretation

Back 7

sensory transducers

Front 8

a function of the brain that involves the recognition of stimulu type and the location of the stimulus input

Back 8

snesory perception

Front 9

this is tested using a snellen chart

Back 9

visual acuity

Front 10

the eye's ability to distinguish detials

Back 10

visual acuity

Front 11

what is the expression for visual acuity

Back 11

V = d/D

Front 12

the blurring or distortion of the visual image caused by defects in the curvature of the cornea or lens

Back 12

astigmatism

Front 13

why are some of the lines blurred in the astigmatism chart

Back 13

light entering the eye is refracted in the horizontal and vertical planes differently

Front 14

what contains the photoreceptors

Back 14

retina

Front 15

what are the two types of photoreceptors

Back 15

rods and cones

Front 16

sensitive under low light conditions

Back 16

rodds

Front 17

color photoreceptors

Back 17

cones

Front 18

what are the three kinds of cones

Back 18

red green blue

Front 19

the changing of the shape of the lens that occurs when the normal ee is focused for close vision

Back 19

accommodation

Front 20

the location in the retina at which the optic nerves of the retina converge and exit the eyeball

Back 20

optic disk

Front 21

when you become increasingly less sensitive to the presence of a stimulus

Back 21

adaptation

Front 22

is there a higher or lower density of touch receptors in areas that have a more sensitive ability to feel objects

Back 22

higher

Front 23

an ability to distinguish two points of pressure at short distances indicates a higher or lower density of receptors

Back 23

higher

Front 24

the ability to localize the source of sound depends on

Back 24

difference in loudness
time or arrival of the sound at the two ears

Front 25

does accomodation distance increase with age

Back 25

yes

Front 26

this is used to measure the reaction time of the simple monosynaptic acheilles tendon reflex

Back 26

EMG electromyogram

Front 27

_____ ______ travfeling along motor nerves from teh CNS trigger muscle contraction

Back 27

action potentials

Front 28

give an example of a myotactic reflex

Back 28

knee jerk

Front 29

this is performed without volition or conscious control

Back 29

reflex

Front 30

reflex contraction of a muscle when an attached tendon is pulled

Back 30

myotactic reflex

Front 31

what can be used to control prosthetic devices

Back 31

EMG

Front 32

the conversion of energy from one form to another

Back 32

transduction

Front 33

refers to synaptic events wherein an electrrical signal known as an action potential is converted to a chemical one via the release of neurotrans

Back 33

transduction

Front 34

a chemical or physical stimulus is transduced by sensroy receptors into an electrical signal

Back 34

sensory transduction

Front 35

name two sensory transducers

Back 35

rods and cones

Front 36

the light cuases a confromation change in a protein called ____

Back 36

rhodopsin

Front 37

transduce informartion from within the organism

Back 37

interoreceptors

Front 38

transduce info regardig the body parts in relation to one another

Back 38

proprioreceptors

Front 39

transduce information from outside the body

Back 39

exteroreceptors

Front 40

deal with stimuli which are away from the body

Back 40

teloreceptors

Front 41

transduce stimuli adn events that occur on the body's surface

Back 41

somatoreceptors

Front 42

blood plasma without fibrinogen

Back 42

blood serum

Front 43

percentage of total blood volume occupied by erythrocytes

Back 43

hematocrit

Front 44

what does a high hematocrit tell you

Back 44

dehydration high RBC

Front 45

what dos a low hematocrit tell you

Back 45

anemia blood loss low RBC bone marrow failure malnutrition

Front 46

a hemoprotein composed of globin and heme that gives red blood cells their color cunctions primarily to transport oxygen from the lungs to the body tissues

Back 46

hemoglobin

Front 47

what does high hemoglobin mean

Back 47

high RBC congenital heart disease pulmonary disease

Front 48

what does low hemoglobin mean

Back 48

anemia low RBC blood cell destruction malnutrition

Front 49

count of total RBC per unit volume

Back 49

RBC count

Front 50

what does RBC count indicate

Back 50

anemia blood loss hemolysis RBC imbalance bone marrow failure heart disease

Front 51

what does WBC count indicate

Back 51

infection tissue damage leukemia

Front 52

time in which it take coagulation to occur within blood plasma

Back 52

clotting time

Front 53

what does clotting time indicate

Back 53

hemophilia cirrhosis hepatitis malabsorption of nutrients vit K deficiency

Front 54

numbers in RBC count

Back 54

10,000 x cells in five squares

Front 55

numbers in WBC count

Back 55

40 x cells in five squares

Front 56

mixture of cellular components suspended in fluid called plasma

Back 56

blood

Front 57

net diffusion of water across a semi permeable membrane through transmembrane proteins called aquaporins

Back 57

osmosis

Front 58

hemisphere of language math and logic

Back 58

left

Front 59

hemisphere of space face visual and music

Back 59

right

Front 60

in EEG is frequency and amplitude inversely or directly related

Back 60

inversely

Front 61

these waves are alert focused an proglem solving... also REM sleep

Back 61

beta

Front 62

these waves are non focused relaxed drowsy

Back 62

alpha

Front 63

these waves are visual imagery

Back 63

theta

Front 64

these waves are deep restful sleep

Back 64

delta

Front 65

any substance that can stimulate the productio of antibodies

Back 65

antigen

Front 66

any of numberous Y shaped protein molecules produced by B cells as a primary immune defense

Back 66

antibody

Front 67

the part of a macromolecule that is recognized by the immune system

Back 67

epitope

Front 68

part of the antibody that recognizes the epitope

Back 68

paratope

Front 69

antibodies doe three things

Back 69

prevent from entering
stimulate macrophage removal
trigger destruction responses

Front 70

what is the highest percent of immunglobin antibodies

Back 70

IgG

Front 71

the amino acid sequence of IgG varies in a _____dependent manner

Back 71

species