Exam 1 review questions

Question 1

Which sensory pathway does not pass through the thalamus before terminating in the cerebral cortex?

Answer 1

Olfactory tract

Question 2

What is the function of the eustachian tube?

Answer 2

regulated air pressure in the middle ear

Question 3

What is the function of the spiral organ?

Answer 3

The actual organ of hearing where hair cells are located and stimulated

Question 4

Where are taste buds located?

Answer 4

vallate, fungiform and foliate papillae

Question 5

What part of the eye converts light energy into neural impulses?

Answer 5

rods and cones

Question 6

What part of the eye controls the size of the pupil?

Answer 6

iris

Question 7

What cells produce new olfactory receptor cells?

Answer 7

basal stem cells

Question 8

What is the bind spot in the eye?

Answer 8

optic disc

Question 9

What structures help maintain dynamic equilibrium?

Answer 9

Semicircular canals

Question 10

What structures help maintain static equilibrium?

Answer 10

Vestibule

Question 11

Which of the following is a function of a hormone?

Answer 11

control mood, growth and development the way our organs work, metabolism and reporduction.

Question 12

Which of these hormones are produces in the hypothalamus?

Answer 12

oxytocin, antidiuretic hormone, and thyrotropin

Question 13

Which of these hormones are produced in the anterior pituitary ?

Answer 13

growth hormone, thyroid, follicle, lutenizing prolactin, adrenicirticotropic and melanocyte

Question 14

Which of these hormones are produced in the thyroid gland?

Answer 14

t3,t4, and calcitonin

Question 15

What is an example of antagonistic hormones that control homeostasis?

Answer 15

insulin, glucagon, calcitonin, and parathyroid

Question 16

What is the function of glucagon?

Answer 16

Glucagon: raises blood glucose level, converts nutrients into glucose, and release into blood.

Question 17

What is the function of insulin?

Answer 17

lowers blood glucose level, converts glucose to glycogen, stimulates protein synthesis.

Question 18

What is the function of throxin?

Answer 18

increase basal metabolic rate. Increase use of glucose and fatty acids, develops nervous system and growth hormone

Question 19

Where is insulin produced?

Answer 19

pancreas

Question 20

Where is calcitonin produced?

Answer 20

thyroid gland

Question 21

Where is adrenalin prpduced?

Answer 21

adrenal glands

Question 22

What conditions results from too much growth hormone?

Answer 22

pituitary gigantism

Question 23

Which condition results from too little of thyroid hormone?

Answer 23

goiter

Question 24

What conditions result from too much thyroid hormone ?

Answer 24

grave disease

Question 25

How does positive feedback differ from negative feedback?

Answer 25

When there is a stimulation that it is increasing, the affect will also increase. It moves in the same direction. While negative feedback is the opposite of that and move different directions.

Question 26

Which leucocytes are granular?

Answer 26

neutrophils, eosinophils, and basophils

Question 27

Which leucocytes are agranular?

Answer 27

lymphocytes and monocytes

Question 28

What is the process in which the formed elements of the blood are produced?

Answer 28

hemopoiesis(hematopoiesis)

Question 29

What type of cell develops from monocytes?

Answer 29

macrophages

Question 30

What type of cell develops from reticulocytes?

Answer 30

red blood cells

Question 31

What type of cell develops from megakaryocytes?

Answer 31

platelets

Question 32

What type of cell develops from B cells?

Answer 32

plasma cells

Question 33

What steps occur in hemostasis in the correct order?

Answer 33

vascular spasm, platelet plug formation, blood clotting (coagulation)

Question 34

Where are red blood cells produced?

Answer 34

Red bone marrow

Question 35

What is the most common cause of an increase in the number of white blood cells?

Answer 35

Infection or inflammation

Question 36

What protein forms the thread like structures in a blood clot?

Answer 36

Fibrinogen

Question 37

What is the pacemaker of the heart?

Answer 37

Sinoatrial node

Question 38

What event in the cardiac cycle is represented by the P wave in an EKG?

Answer 38

atrial depolarization (electrical excitation)

Question 39

What event in the cardiac cycle is represented by the QRS wave in an EKG?

Answer 39

ventricular depolarization (electrical excitation)

Question 40

What events in the cardiac cycle is represented by the T wave in an EKG?

Answer 40

ventricular repolarization (end of electrical excitation)

Question 41

Which heart chambers contain deoxygenated blood?

Answer 41

right atrium and right ventricle

Question 42

Which heart chambers contain oxygenated blood?

Answer 42

left atrium and left ventricle

Question 43

Which layer of the heart wall consists of cardiac muscle?

Answer 43

Myocardium

Question 44

Where are the semilunar valves found in the heart?

Answer 44

between the right ventricle and the pulmonary trunk

Question 45

What connects cardiac muscle cells to each other?

Answer 45

intercalated discs

Question 46

How is cardiac output calculated?

Answer 46

multiplying stroke volume with heart rate

Question 47

What do the numbers mean in a blood pressure reading in systolic?

Answer 47

upper number, represents the pressure in the arteries when the ventricles are contracting

Question 48

What do the numbers mean in a blood pressure reading in diastolic?

Answer 48

lower number, represents the pressure in the arteries when the ventricles are relaxing