30. carry oxygen rich blood front the heart to the body’s tissues and organs a. veins
b. arteries
c. capillaries
d. alveoli

31. gradually become smaller and smaller gradually divide into capillaries
a. veins
b. arteries
c. capillaries
d. alveoli

32. receive blood from the capillaries after gas exchange takes place
a. veins
b. arteries
c. capillaries
d. alveoli

33. are the smallest, most fragile blood cells
a. veins
b. arteries
c. capillaries
d. alveoli

34. tiny air sacs where exchange of gasses occur are:
a. veins
b. arteries
c. capillaries
d. alveoli

35. is a balloon type, bulging of a blood vessel
a. an aneurysm
b. a stroke
c. coronary artery disease
d. none of the above

36. refers to the pressure in the arteries when the heart is at rest, between beats
a. blood pressure
b. systolic pressure
c. diastolic pressure
d. intra-cranial pressure

37. loss of blood to the brain caused by a ruptured vessel is called:
a. aneurysm
b. stroke
c. brain failure
d. coronary artery disease

38. refers to the pressure in the arteries when the heart beats (contracts)
a. diastolic pressure
b. systolic pressure
c. blood pressure
d. none of the above

39. what is the basic unit of a muscle?
a. myosin
b. actin
c. muscle fibers
d. myofibrils

40. slow-twitching muscle fibers are used when:
a. the muscles perform long slow movements
b. the muscles perform long periods of activity
c. the muscles perform quick bursts of energy
d. the muscles are utilizing protein for energy

41. is the sugar that is found in the blood and used as the body’s main energy source
a. glucose
b. insulin
c. carbohydrate
d. hdl

42. the type of diabetes that occurs when the body’s immune system destroys the cells in the pancreas is called
a. type 1 diabetes
b. type 2 diabetes
c. insulin dependent diabetes
d. non-insulin dependent diabetes
e. both a and c
f. both a and d