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Flashcards in Lab V Deck (26)
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1

Accommodation

Ability to change shape of lens

2

Astigmatism

Irregularity of corena or lens

3

Fovea Centrails

Area of sharpest vision

4

Hyperopia

Farsightedness

5

Macula lutea

Yellow spot

6

Myopia

Nearsightedness

7

Optic Disc

Blind Spot

8

Presbyopia

Loss of lens elasticity due to age

9

Visual acuity

Sharpness of vision

10

List the general senses

Pain Touch Pressure Temperature

11

List the special senses

Hearing Sight Taste Equilibrium Smell

12

What test was used in lab to detect color-blindness?

Ishiharais Test (book with colored numbers in circles)

13

What test was used in lab to determine visual acuity?

Snellen Eye Chart (letter/shape chart read at 20 feet, 20/20)

14

Name two tests that can be used for testing hearing

-Rinne Test

-Weber Test

15

Name two types of deafness and state the causes of each. Which type can be improved with a hearing aid?

1. Conduction - helped with hearing aid

2. Sensory - something wrong with nerves, can only be helped with cochlear implant

16

What two cranial nerves receive sensory information from taste buds on the tongue?

VII - Facial IX - Glossopharyngeal

17

Roughly sketch the areas for the four basic taste sensations on the tongue.

Bitter - at back (toward throat) and center of tongue Sweet - at front (toward teeth) and center of tongue Sour - Sides, toward back of tongue Salt - Sides, toward front of tongue

18

When whole blood is centrifuged, it separates into two main fractions which are ______ and ______.

formed elements and plasma

19

Name three types of blood cells.

Erythrocytes (RBC) Leukocytes (WBC) Thrombocytes (platelets)

20

What is the hematocrit and how is it measured?

Packed red cell volume (height of PRBC compared to entire column). Traditionally measured in a capillary tube after centrifugation. Now usually auto-measured with machine.

21

If given one of the four blood groups (A, B, AB or O) be able to state the antigen found on the red blood cell and the antibodies found in the plasma.

A = antigen is A, antibody is anti-B

B = antigen is B, antibody is anti-A

AB = antigens are A & B, no antibodies

O = no antigens on cells, antibodies A & B in plasma

22

If given a list of structures, be able to trace a drop of blood through the heart by numbering the structures in the correct order.

1. vena cava (from the body)

2. right atrium

3. tricuspid valve

4. right ventricle

5. pulmonary semilunar valve

6. pulmonary artery

7. lungs

8. pulmonary vein

9. left atrium

10. bicuspid valve

11. left ventricle

12. aorta semilunar valve

13. aorta (to the body)

23

Name the three layers of tissue that make up the wall of the heart.

Epicardium (exterior layer) Myocardium (middle layer) Endocardium (inner layer)

24

Name several structures in the fetal circulation that are no longer needed after birth

-Foramen ovale

-Ductus arteriosis

-Umbilical artery/vein

25

Nystagmus

rapid eye movement after spinning around

26

Ear Model

-auditory canal -cochlea -eardrum -ear osicles (malleus, incus, stapes) -semicircular canals -auditory tube