Biology 1409 Final

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Non-science major human Biology

1) Incontinence is often the final outcome of the urinary system during the aging process.

True

2) The process of breathing is known as pulmonary ventilation.

True

3) The involuntary internal urethral sphincter is composed of skeletal muscle.

False, it is composed of smooth muscle

4) The functions of the alimentary canal include ingestion, digestion, absorption, and defecation.

true

5) An astigmatism results from unequal curvatures of the cornea or lens.

True

6) The umbilical vein carries blood rich in nutrients and oxygen to the fetus.

True

7) Sexually transmitted infections (STIs) are primarily infections of the reproductive tracts but may also cause urinary tract infections.

True

8) Melatonin production peaks during the night to help regulate the body's day-night cycle.

True

9) The lungs of the fetus are filled with air late in pregnancy.

False, they are filled shortly after birth

10) The process of mastication is simply known as chewing.

True

11) Beginning at the ninth week of development, the embryo is referred to as a fetus.

TRUE

12) Lymph flows in one direction only: toward the heart.

TRUE

13) The study of hormones and endocrine organs is known as immunology.

FALSE,it is Endocrinology

14) In fetal circulation, blood travels directly from the right atrium to the left atrium through the foramen ovale.

TRUE

15) The placenta is a temporary organ formed in the uterus of pregnant women.

TRUE

16) Hematopoiesis refers to the formation of blood cells within the red marrow cavities of certain bones.

TRUE

17) Adrenaline is also known as epinephrine.

TRUE

18) The tiny filtering structures of the kidneys are called nephrons.

TRUE

19) The "stirrup" is also referred to as the stapes.

TRUE

20) The hormones secreted by the posterior pituitary are actually made by the hypothalamus.

TRUE

21) Hypersecretion of growth hormone during childhood leads to pituitary dwarfism.

FALSE, it leads to pituitary gigantism

22) The olfactory receptors are responsible for the sense of taste.

FALSE, they are responsible for the detection of odor molecules..

23) The bony labyrinth of the internal ear consists of the cochlea, vestibule, and the semicircular canals.

TRUE

24) The neurotransmitter used by the nervous system to activate skeletal muscle cells is acetylcholine.

TRUE

25) Cones enable vision in dim light.

FALSE, Cones are active at higher light levels

26) The choroid consists of an outer, pigmented layer and an inner, neural layer which is home to rods and cones.

FALSE

27) The large intestine extends from the pyloric sphincter to the anus.

FALSE, The large intestine extends from the end of the ileum to the anus

28) Gray matter contains collections of unmyelinated fibers and cell bodies in the central nervous system.

TRUE

29) Exchanges between blood and tissue cells occur in capillary beds.

TRUE

30) Cardiac and smooth muscle both have striations.

FALSE, only cardiac muscles have striations

31) The region of the renal tubule closest to the glomerular capsule is the distal convoluted tubule.

FALSE

32) The ascending colon is found on the left side of the abdominal cavity.

FALSE, it is on the right side.

33) The acrosome helps a sperm penetrate the follicle cells that surround the egg.

TRUE

34) The pupil is the circular opening in the iris through which light passes.

TRUE

35) The lymph nodes filter bacteria, viruses, and tumor cells from blood on its way back to the heart.

FALSE

36) Universal donors can receive blood groups A, B, AB, and O.

FALSE

37) The function of the C-rings of hyaline cartilage in the trachea is to keep the airway patent or open for breathing.

TRUE

38) Plane, hinge, and pivot joints are all types of synovial joints.

TRUE

39) The external genitalia of a female is also called the vulva.

TRUE

40) The respiratory membrane is the air-blood barrier, where gases are exchanged.

TRUE

41) Dendrites release neurotransmitters into the extracellular space during nerve impulse transmissions.

FALSE

42) The pigment that gives urine its characteristic yellow color is urochrome.

TRUE

43) Biceps brachii, brachialis, and brachioradialis all cause arm flexion at the elbow joint.

TRUE

44) Antigens are substances the body recognizes as foreign.

TRUE

45) Bile is produced by the liver but stored in the gallbladder.

TRUE

46) Thick filaments are made of a protein called actin.

FALSE

47) The most important function of the thymus gland is to destroy worn-out red blood cells and return some of the products to the liver.

FALSE

48) Blood proteins and blood cells are too large to pass through the filtration membrane and should not be found in filtrate.

TRUE

49) The arrangement of lamellae around central (Haversian) canals forms osteons.

TRUE

50) Proteins are broken down into building blocks known as amino acids by the digestive system.

TRUE

51) The chordae tendineae anchor the semilunar valves to the walls of the ventricles.

FALSE

52) The last two pairs of ribs are called true ribs because they have no anterior attachments.

FALSE

53) The temperature of blood is slightly lower than body temperature.

FALSE

54) Estrogens cause the appearance of secondary sex characteristics in females.

TRUE

55) Vaccines provide naturally acquired active immunity to diseases such as pneumonia, diphtheria, and measles.

FALSE

56) Smooth muscles activity generates heat to help maintain body temperature.

FALSE

57) Rheumatoid arthritis is an autoimmune disease that affects fibrous joints.

FALSE

58) The highest level of structural organization in humans is the organ level.

FALSE

59) The striations seen in skeletal muscle are actually alternating A and I bands.

TRUE

60) The ABCD rule is used for classifying burns.

FALSE

61) Glucose and fructose are classified as disaccharides.

FALSE

62) Ovulation usually occurs on or about day 14 of the menstrual cycle.

TRUE

63) Hair is produced by the hair bulb and is composed primarily of dead keratinized cells.

TRUE

64) Arteries always carry blood away from the heart.

TRUE

65) Membranes that line body cavities that have openings to the exterior of the body are called mucous membranes.

TRUE

66) Leukocytes are more numerous in blood than erythrocytes.

FALSE

67) Sebaceous glands release sweat to help control body temperature.

FALSE

68) The pinkish hue of healthy individuals with fair skin is the result of the crimson color of oxygenated hemoglobin circulating in the dermal capillaries and reflecting through the dermis.

TRUE

69) The lower the pH, the greater the number of hydrogen ions.

TRUE

70) The average heart beats approximately 75 times each minute at rest.

TRUE

71) The four most common elements in the human body, in order of descending quantity, are hydrogen, carbon, oxygen, and nitrogen.

FALSE

72) Inactive or stored energy is called kinetic energy.

FALSE

73) The number of protons in an atom equals the atomic number for that element.

TRUE

74) The human body consists of approximately 60% to 80% water.

TRUE

75) Most homeostatic control mechanisms are negative feedback reactions.

TRUE

76) The larynx routes air and food into their proper channel and plays an important role in speech production.

TRUE

77) The endocrine system is the fast-acting body control system.

FALSE

78) Tissue grafts harvested from an unrelated person are called xenografts.

FALSE

79) Blood plasma makes up the majority of the blood content.

TRUE

80) The lymphatic system collects fluids leaked by the cardiovascular system and returns them to the bloodstream.

TRUE

81) Urine and sperm are able to pass through the urethra at the same time.

FALSE

82) The internal urethral sphincter is involuntary.

TRUE

83) The tonsils are located in the larynx.

FALSE

84) Artificially acquired passive immunity is conferred when one receives immune serum for poisonous snake bites.

TRUE

85) The ejaculatory duct passes through the prostate gland.

TRUE

86) Normal pH of blood is between 7.35 and 7.45.

TRUE

87) The adrenals, pancreas, thyroid, and parathryoids are glands of the endocrine system.

TRUE

88) Urine moves down the ureters into the bladder due to gravitational pull alone.

FALSE

89) The males testes have both an endocrine and an exocrine function.

TRUE

90) Sperm are matured and ejaculated from the epididymis and ductus (vas) deferens during ejaculation.

FALSE

91. pH of the skin is __________ to inhibit bacterialgrowth

ACIDIC

92. ________ traps microorganisms in respiratory pathways

MUCUS

93. What cell releases histamine? a. histamine cell b. B-cell c. mast d. blood

MAST CELL

94. Which is an example of an antigen?a. pollen b.

POLLEN

95. Blood temperature runs higher than body temperature at _____.

100

96. Which is direct effected by Rh blood factor?a. mom b. dad c. baby d. both A and C

MOM AND BABY

97. A blood clot in the vessels of the brain can cause a _____.

STROKE

98. The testes produce ____.a. estrogen b. progesterone c. insulin d. none of the above

D NONE OF THE ABOVE

99. The ovaries produce _____. a. estrogen b. progesterone c. insulin d. both A and B

D. ESTROGEN AND PROGESTERONE

100. Melatonin helps to regulate the ____. a. blood flow b. backflow of blood c. capillary action with the plasma d. none of the above

D. NONE

101) Urine and sperm are able to pass through the urethra at the same time.

FALSE

102) Urine moves down the ureters into the bladder due to gravitational pull alone.

FALSE

103) An erection results from blood filling the spongy erectile tissues of the penis.

TRUE

104) Gas exchange occurs in the:

ALVEOLI

105) Vaccines are NOT for:A) snake bites B) tetanus C) polio D) pneumonia E) measles

A.SNAKE BITES

106) The lymph tissues found within the walls of the small intestine are called:

PEYER'S PATCHES

107) The body's first line of defense against the invasion of disease-causing microorganisms is:

SKIN AND MUCUS MEMBRANES

108) Which lymphatic organ's major job is to destroy worn-out red blood cells and return some of the products to the liver:

SPLEEN

109) Which lymphoid tissues trap and remove bacteria entering the throat:

TONSILS

Air moving in and out of the lungs is called:

PULMONARY VENTILATION

111) Lymph is largely composed of water that has escaped from:

BLOOD

112) Chest pain resulting from the loss of oxygen to heart cells is called:

MYOCARDIAL INFARCTION

Which one of the following alimentary segments has NO digestive function:A) ascending colon B) duodenum C) esophagus D) stomach E) ileum

ESOPHAGUS

The large intestine extends from the pyloric sphincter to the anus.

114) FALSE

115) Pulmonary circulation involves blood flow to and from the heart and the:

115) LUNGS

116) Deoxygenated blood is returned to the right side of the heart by the:

superior and inferior vena cavae

117) The tricuspid valve is located between the:

right atrium and right ventricle

118) Which of the following is a blood clotting disorder:

HEMOPHILIA

119) The right AV valve is known as the:

pulmonary semilunar valve

120) Which blood types carries no antigens:

TYPE O

121) The pointed apex of the heart is oriented toward the:

LEFT HIP

122) Which blood type(s) can a person with blood type O receive:

BLOOD TYPE O

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