Wray- Test Review #2 Flashcards Preview

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Flashcards in Wray- Test Review #2 Deck (70):
1

Which of the listed muscle types has intercalated discs?

Cardiac

2

Muscle reflect after touching something hot is associated with what muscle tissues?

Skeletal

3

Muscles found in stomach, small intestice and iris of the eye belong to which of the muscle groups?

Smooth

4

Light bands of the striated muscle is associated with __________.

I band

5

Which of the following is NOT TRUE about the effects of exercise on muscles?
a. Muscles will increase in size with high level of aerobic exercises
b. Jogging and biking are examples of endurance training
c. Continuous endurance activity protect muscles from being fatigued easily
d. Both a and b are correct
e. All of the above are correct.

a. Muscles will increase in size with high level of aerobic exercises

6

Which protein makes up the thick filament?

Myosin

7

What is/are the conponents of the A band

Thick and thin filaments

8

T/F: Aerobic respiration produces high amount of ATP and lactic acid

FALSE

9

T/F: The heavier the object you are lifting the more skeletal muscles activated and the weaker the muscle contraction

FALSE

10

T/F: Weightlifting is an example of endurance training

FALSE

11

Muscle fatigue is associated with build up of __________ in the muscle tissue

Lactic Acid

12

Which of the following function is NOT associated with muscular tissue?
a. generation of heat
b. maintaining posture
c. production of movement
d. stabilization of joints
e. none of the above

None of the above?
a. generation of heat
b. maintaining posture
c. production of movement
d. stabilization of joints

13

Light and dark patterns observed on the muscle

Striation

14

Voluntary movement is associated with which type of muscle?

Skeletal muscle only

15

Muscles with a single nucleus for each cell

Smooth and Cardiac

16

A contractile unit of the muscle fiber

Sarcomere

17

Dark patterns of the muscle are associated with which band?

Thick & thin filaments

18

Structure that marks the boundaries for each sarcomere

Z disc

19

Involuntary movements are associated with which type of muscle?

Smooth and cardiac

20

Location where ACh is stored inside a neuron

Axon Terminal

21

Regulatory protein that allows interaction between myosin and actin

Calcium

22

Connection between myosin and actin is known as

Cross bridge

23

Structure that stores Ca inside the muscle cell

Sarcoplasmic reticulum

24

Region where ACh is released into

Neurotransmitter junction

25

Ions associated with action potential

Sodium & potassium

26

Structure responsible for production of ATP inside the cell

Mitochondria

27

Homeostasis Story:
If blood calcium concetnration rises above a value of 11 mg/dL, the thyroid gland that monitors the level of calcium in the blood, are stimulated to release the hormone calcitonin (CT) into the blood. CT inhibits the reabsorption of calcium concentration to lower than 11 mg/dL. In addition, CT inhibits the breakdown of bone, thus decreasing the blood calcium concentration to lower than 11 mg/dL.

Value 11 mg/dL in the above paragraph represent __________

Homeostasis Story:
If blood calcium concetnration rises above a value of 11 mg/dL, the thyroid gland that monitors the level of calcium in the blood, are stimulated to release the hormone calcitonin (CT) into the blood. CT inhibits the reabsorption of calcium concentration to lower than 11 mg/dL. In addition, CT inhibits the breakdown of bone, thus decreasing the blood calcium concentration to lower than 11 mg/dL.

Set point

28

Homeostasis Story:
If blood calcium concetnration rises above a value of 11 mg/dL, the thyroid gland that monitors the level of calcium in the blood, are stimulated to release the hormone calcitonin (CT) into the blood. CT inhibits the reabsorption of calcium concentration to lower than 11 mg/dL. In addition, CT inhibits the breakdown of bone, thus decreasing the blood calcium concentration to lower than 11 mg/dL.

In the above paragraph, calcitonin represents the __________ in the stimulus response system

Output

29

Homeostasis Story:
If blood calcium concetnration rises above a value of 11 mg/dL, the thyroid gland that monitors the level of calcium in the blood, are stimulated to release the hormone calcitonin (CT) into the blood. CT inhibits the reabsorption of calcium concentration to lower than 11 mg/dL. In addition, CT inhibits the breakdown of bone, thus decreasing the blood calcium concentration to lower than 11 mg/dL.

In the above paragraph, inhibition of bone breakdown represents which part of stimulus/response system?

Effect

30

Homeostasis Story:
If blood calcium concetnration rises above a value of 11 mg/dL, the thyroid gland that monitors the level of calcium in the blood, are stimulated to release the hormone calcitonin (CT) into the blood. CT inhibits the reabsorption of calcium concentration to lower than 11 mg/dL. In addition, CT inhibits the breakdown of bone, thus decreasing the blood calcium concentration to lower than 11 mg/dL.

Based on the given information, which part of the stimulus/response system does thyroid gland represent?

Sensor controller

31

Which of the following choices is a homeostatically regulated pathway?
a. Calcium level
b. Glucose level
c. Body temperature
d. All of the above

All of the above:
a. Calcium level
b. Glucose level
c. Body temperature

32

T/F: Systole corresponds to muscle contraction

True

33

During which stage of the cardiac cycle does the ventricles contract?

Ventricular Systole

34

During which stage of the cardiac cycle does the atria contract?

Mid-to-late diastole

35

During which state of the cardiac cycle do the AV valves close?

Ventricular Systole

36

The aortic semilunar valve closes to prevent the backflow of blood to the

Left Ventricle

37

The mitral valve is located between the _______ and ________.

Left atrium, left ventricle

38

Blood vessels returning blood to the left atrium is known as

Pulmonary veins

39

Valve that prevents back flow to the RA is known as

Both bicuspid valve and atrioventricular valve

40

Chamber of the heart that receives blood from superior venae cavea is known as

RA

41

Blood vessels that take blood to lungs is known as

Pulmonary artery

42

During which stage of cardiac cycle blood freely flows from atria --> ventricles?

Early diastole

43

Blood vessels that collect blood from the systemic circulation

Superior and Inferior Venae Cava

44

The blood vessel responsible for sending blood through systemic circulation

Aorta

45

Which part of the intrinsic conduction system sets up the heart rhythm?

SA Node

46

A heart condition in which the heart beat drops lower than 60 beats/min is known as:

Bradycardia

47

Which part of the intrinsic conduction system is located just superior to the right AV valve?

AV node

48

A large dog is chasing you down the stree. Which of the following statement is true in regards to your cardiovascular system?

Sympathetic division of nervous system is highly active

49

"Lub-dub:" The lub sound of the heart is associated with

AV valves closing

50

Cardiac output depends on ___________

Both A & B:
A. Stroke Volume
B. Heart Rate

51

The smallest branching of the intrinsic system that spreads the action potential through the heart is known as

Purkinjie Fiber

52

Irregular heart beat is known as

Arrhythmia

53

T/F: Parasympathetic division of nervous system causes a decrease in heart rate

True

54

T/F: Your normal heartbeat does not require input from the nervous system

True

55

Blood going to the tissue is ______ on oxygen and _______ on carbon dioxide

high, low

56

Buffy coat refers to the __________

WBCs

57

What is the top most layer of the blood after centrifugation?

plasma

58

Which of the following items listed is not part of the plasma layer?
a. water
b. hormones
c. globin
d. bicarbonate
e. none of the above

Globin

59

Blood going to your lungs is _____ on oxygen and _______ on CO2

low, high

60

What is the lease common type of WBC?

Basophils

61

Which of the following statements is not true?
a. There is an increase in size of the buffy coat during infection.
b. Males have higher plasma level due to larger muscle weight.
c. Removal of toxins is associated with the buffy coat.
d. Clotting ability of blood is associated with plasma layer.
E. both a and d

b. Males have higher plasma level due to larger muscle weight.

62

Which of the following statesments is true about Sickle Cell anemia?
a. Sickle cell anemia is associated with erythrocytes
b. A person with Sickle cell enemia can make normal WBCs
c. Sickle cell anemia causes changes to the globin protein of hemoglobin
d. Only a and b
e. all of the above

e. all of the above

63

True or False: High blood oxygen level leads to an increase of production of EPO

False

64

How many oxygen molecules can an iron molecule carry?

1

65

What part of hemoglobin is responsible for transport of CO2?

Globin

66

Which of the following statements is not true about RBCs?
a. Every RBC contains a nucleus but no organelles
b. RBCs rely on anaerobic reaction to produce its own energy
c. Iron is an essential component of the hemoglobin
d. The spleen is responsible for destruction of the RBCs
e. All of the above statements are correct.

a. Every RBC contains a nucleus but no organelles

67

T/F: There are a total of four heme molecules per hemoglobin protein.

True

68

Which of the following statements is correct?
a. Kidney disease could lead to hypoxia.
b. erythropoietin is prduced by the liver and controls the level of RBC production
c. Decrease in oxygen levels in blood causes a decrease in EPO production
d. Both a and b
e. Both b and c

a. Kidney disease could lead to hypoxia.

69

T/F: Hematopoietic stem cells are associated with red bone marrow.

True

70

Deoxyhemoglobin refers to the hemoglobin that
a. is bound to oxygen
b. is bound to CO2
c. has released its oxygen
d. both a and c

c. Has released its oxygen