44. A ballooning of an artery is called: a. hypertension b. stroke c. aneurysm d
ID: 181072 • Letter: 4
Question
44. A ballooning of an artery is called:
a. hypertension
b. stroke
c. aneurysm
d. atherosclerosis
e. myocardial infarction
45. When a portion of he heart muscle dies due to the lack of oxygen, it is called a heart attack or ____
a. hypertension
b. stroke
c. cerebrobvascular accident
d. myocardial infarction
46. Oxygenated blood flows through all of the following except:
a. pulmonary veins
b. pulmonary arteries
c. systemic arteries
d. coronary arteries
47. When you exercise you generate excess heat and your body temperature rises. Blood vessels to the skin, warm blood flows closer to the bodily surface, and you lose heat. This process is:
a. negative feedback
b. positive feedback
c. dynamic equilibrium
d. integration control
e. point adjustment
48. When a woman is giving birth, the head of the baby pushes against the cervix and stimulates release of the hormone oxytocin. Oxytocin travels in the blood and stimulates the uterus to contract. Contractions become more and more intense until the baby is expelled. This is an example of:
a. negative feedback
b. positive feedback
c. dynamic equilibrium
d. integration control
e. point adjustment
49. Pepsinogen is protected by _____ cells and is activated by ____.
a. chief; HCL secreted by parietal cells
b. chief; carbonic anhydrase secreted by parietal cells
c.parietal; HCl secreted by chief cells
d. parietal; carbonic anhydrase secreted by chief cells
e. exocrine cells; carbonic anhydrase secreted by parietal cells
50. Which of the following enzymes function at the lowest pH?
a. salivary amylase
b. pancreatic amylase
c. pepsin
d. trypsin
e. dipeptidase
51. Which of the following is most similar to the negative feedback effect in humans?
a. a car that runs out of has and stops
b. starting a bonfire with only a single match
c. a toilet tank that refills itself after a flush
d. a teacher marking all the wrong answers on a students exam
e. an automatic door opens when you approach it
52. Which of the following is most similar to the positive feedback effect in humans?
a. a car that runs out of has and stops
b. starting a bonfire with only a single match
c. a toilet tank that refills itself after a flush
d. a teacher marking all the wrong answers on a students exam
e. an automatic door opens when you approach it
53. Which of the following endocrine glands is located most inferiorly?
a. thyroid
b. thymus
c. adrenal gland
d. pineal body
e. pituitary gland
54. The nervous system reacts to stimuli ___ compared to the endocrine system, adapts _____ compared to the endocrine system and has _____ effects compared to the endocrine system.
a. slowly; slowly; widespread
b. quickly; slowly; specific
c. quickly; quickly; widespread
d. quickly; quickly; specific
e. slowly; quickly; specify
63. The amount of air which enters and leaves the respiratory tract in one resting breath is
a. residual volume
b. tidal volume
c. vital capacity
64. The amount of air which includes the inspiratory reserve, expiratory reserve and tidal volume called the
a. residual volume
b. tidal volume
c. vital capacity
65. The types of respiration in which gases are exchanged between the blood and the air in the external environment is called:
a. breathing
b. external respiration
c. internal respiration
d. cellular respiration
e. fermentation
66. Which of the following is associated wth smoking?
a. heart disease
b. low birthweight babies
c. cancer of the bladder
d. cancer of the pancreas
e. all of the choices are correct
67. Which of the following occurs due to smoking?
a. thickening of cells that line the bronchi
b. loss of cilia
c. appearance of atypical nuclei
d. damaged cells
e. all of the choices are correct
75. The outer sac that encloses the heart and provides publication is the
a. myocardium
b. endocardium
c. ectocardium
d. pericardium
e. coronary capsule
76. The pulmonary semilunar valve prevents blood from entering the
a. right atrium
b. left atrium
c. right ventricle
d. left ventricle
e. pulmonary trunk
77. If you are tracing the path of blood from he right to the left side of the heart, you must start at the
a. lungs
b. hepatic portal vein
c. aorta
d. superior vena cava
e. inferior vena cava
78. Which phase of the ECG indicates ventricular executor and contraction?
a. P wave
b. QRS wave
c. T wave
d.
e.
79. It would be impossible for a type O- baby to have a/an ____ father.
a. B-
b. O
c. O-
d. A
e. AB
80. Which one of the following path of the conduction system directly stimulates the
a. AV node
b. AV bundle
c. right and left bundle branches
d. purkinje fibers
e. bundle of His
90. The ion that creates an osmotic and electrical gradient that drives reabsorption of water and other solutes is:
a. Ca2+
b. Cl-
c. K
d. Na+
e. H2
92. Men have only one _____, but have two of all the rest of these:
a. bulbourethral gland
b. prostate gland
c. ejaculatory duct
d. seminal vesicles
e. corpus cavernosum
93. Mitochondria are found in the ____ of a spermatozoan.
a. acrosome
b. head
c. principle piece
d. midpiece
e. end piece
94. Most of the semen consists of the secretion from
a. the seminal vesicles
b. prostate
c. the testes
d. the epididymis
e. the bulbourethral glands
95. The most important role of meiosis in sexual reproduction is:
a. to reduce the size of gametes
b. to produce at least one gamete that is mobile
c. to prevent the chromosome number from doubling in each generation
d. to ensure that each daughter cell gets the same number of chromosomes
e. to change the genetic composition of each chromosome
97. Which hormone stimulates the interstitial cells to secrete testosterone?
a. LH
b. FSH
c. inhabitant
d. gonadotropin releasing hormone
e. antiogen binding protein
99. The majority of breast cancers
a. occur in women with a long exposure to estrogen
b. have no identifiable risk factor
c. are hereditary
d. are linked to smoking
e. are all linked to high carbohydrates diets
100. When the vesicular or graffiti follicle experts the secondary oocyte, it becomes the _____ and primarily secretes.
a. corpus albicans; FSH and LH
b. corpus albicans; progesterone
c. corpus luteum; testosterone
d. corpus luteum; progesterone
e. corpus albicans; progesterone
Explanation / Answer
44.c. aneurysm
It is due tothe formation of palque in the artery which leads to the bulging or balloning due to the presure of the blood causes the artery to balloon out and the wall of the artery becomes dangerously thin.
45.When a portion of he heart muscle dies due to the lack of oxygen, it is called a heart attack or
d. myocardial infarction .
It occurs when there is reduced blood supply leading to the death of the heart muscle.This happens due to the breaking up of the plaque that is formed and a blood clot forms in the narrowed artery.
46. Oxygenated blood flows through all of the following except:
b. pulmonary arteries .
they carry deoxygenated blood from heart to lungs.
47. When you exercise you generate excess heat and your body temperature rises. Blood vessels to the skin, warm blood flows closer to the bodily surface, and you lose heat. This process is:
b. positive feedback as excess of body heat is lost into the surroundings either by radiation or bythe formation of sweat .
48. When a woman is giving birth, the head of the baby pushes against the cervix and stimulates release of the hormone oxytocin. Oxytocin travels in the blood and stimulates the uterus to contract. Contractions become more and more intense until the baby is expelled. This is an example of:
b. positive feedback
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