Quiz 4 QZ4
Endocrine, Lymphatic, Immune and
Respiratory Systems
1
Which of the following is a parallel between the
nervous and endocrine systems?
a. Both systems are primarily regulated by
positive feedback mechanisms.
b. Both systems rely on hormones.
c. Both systems are primarily regulated by
negative feedback mechanisms.
d. Both systems rely on neurotransmitters.
2
The hypothalamus secretes which of the
following?
a. regulatory hormones
b. G proteins
c. hormone-receptor complexes
d. second-messenger hormones
3
Which hormones cross the cell membrane
before binding to receptors inside the cell?
a. ADH and oxytocin
b. steroid and thyroid hormones
c. growth hormones and melatonin
d. epinephrine and norepinephrine
4
Which of the following is a posterior
pituitary hormone?
a. follicle-stimulating hormone
b. luteinizing hormone
c. adrenocorticotropic hormone
d. antidiuretic hormone
5
Which thyroid hormone molecule, derived from
the amino acid tyrosine, has four atoms of iodine
attached?
a. triiodothyronine
b. calcitonin
c. thyroxine
d. PTH
6
Increased synthesis and release of glucose from
the liver are a result of the activation of which
cells/organs?
a. beta cells of the pancreas
b. pineal gland
c. alpha cells of the pancreas
d. C cells of the pancreas
7
Which endocrine structure is correctly
paired with the hormone it produces?
a. heart - erythropoietin
b. adipose tissue - leptin
c. hypothalamus - growth hormone
d. thyroid gland - thymosins
8
Which of the following structures collects lymph
from the lower abdomen, pelvis, lower limbs,
and the left half of the head, neck, and chest?
a. pelvic lymphatic trunk
b. left lymphatic capillary system
c. thoracic duct
d. right lymphatic duct
9
Which cells in the bone marrow produce
lymphoid stem cells with two distinct fates?
a. T cells
b. hemocytoblasts
c. NK cells
d. B cells
10
A small, ovoid lymphoid organ covered by a
fibrous capsule is called which of the following?
a. lymph node
b. spleen
c. lymphoid nodule
d. tonsil
11
Which structure contains the largest
collection of lymphoid tissue in the body?
a. thymus
b. appendix
c. tonsil
d. spleen
12
The fact that the immune response targets only
the particular antigen that activates a particular
defense mechanism is part of ____.
a. tolerance
b. memory
c. versatility
d. specificity
13
Inappropriate or excessive immune
responses to antigens are called ____.
a. immunodeficiency diseases
b. allergies
c. autoimmune disorders
d. immunological incompetence
14
Which of the following disorders appear to be
cases of “mistaken identity?”
a. autoimmune disorders
b. Type IV allergies (delayed
hypersensitivity)
c. immunodeficiency diseases
d. Type III allergies (immune complex
disorders)
15
Where does the conducting portion of the
respiratory system begin?
a. at the secondary bronchioles
b. at the entrance to the nasal cavity
c. at the nasopharynx
d. at the oropharynx
16
Which structures branch repeatedly in the lungs
before supplying capillaries where gas exchange
occurs?
a. coronary sinus
b. left and right pulmonary veins
c. left and right pulmonary arteries
d. superior thoracic arteries
17
Which cells are known as dust cells?
a. septal cells
b. alveolar macrophages
c. squamous epithelial cells of the lungs
d. pleural cells
18
Tuberculosis, a major worldwide health problem,
results from infection of lung structures by ____.
a. viruses
b. bacteria
c. richettsia
d. flagellated parasites
19
The number of breaths per minute is called
(the) ____.
a. alveolar ventilation rate
b. respiratory rate
c. respiratory cycle
d. pulmonary ventilation cycle
20
At which point does thoracic cavity volume
decrease and pressure inside rise?
a. during forced inhalation
b. during exhalation
c. at rest
d. during quiet inhalation
21
What happens to the majority of carbon dioxide
molecules in plasma?
a. It is diffused out of erythrocytes.
b. It is absorbed by peripheral capillaries.
c. It is diffused into erythrocytes.
d. It is degraded by carbonic acid.
22
Which system transports carbon dioxide as
bicarbonate ions, which helps the buffering
capability of blood against pH changes?
a. cardiovascular system
b. digestive system
c. endocrine system
d. respiratory system
23
The major tissue type responsible for the
production of glandular secretions is _________.
a. connective tissue
b. epithelial tissue
c. muscle tissue
d. nervous tissue
24
What is the study of tissues called?
a. gross anatomy
b. pathophysiology
c. cytology
d. histology
25
Structures that attach cells to extracellular
structures, such as basement membrane protein
fibers, are called which of the following?
a. hemidesmosomes
b. spot desmosomes
c. tight junctions
d. gap junctions
26
Endocrine secretions are produced in
which of the following structures?
a. thyroid and mammary glands
b. pancreas and mammary glands
c. pituitary and thyroid glands
d. sebaceous and pituitary glands
27
The bones that form the roof and superior walls
of the cranium are the ____ bones.
a. temporal
b. maxillary
c. sphenoid
d. parietal
28
The right atrium receives blood from the ____
circuit through the ____.
a. systemic; great cardiac veins
b. pulmonary; pulmonary veins
c. systemic; superior and inferior vena
cavae
d. pulmonary; superior and inferior vena
cavae
29
Which structure is found between the right
atrium and right ventricle?
a. tricuspid valve
b. mitral valve
c. pulmonary semilunar valve
d. bicuspid valve
30
The layer of the wall of the heart, which contains
cardiac muscle tissue, blood vessels, and
nerves, is called which of the following?
a. epicardium
b. myocardium
c. pericardium
d. endocardium
End of Quiz 4
QZ4
Endocrine, Lymphatic, Immune and
Respiratory Systems