Quiz 5: Your Body at Work
Submit this assignment by 11:59 p.m. (ET) on Monday of Module 5: Week 5.
Score for this quiz: 76.8 out of 80
Submitted Nov 21 at 10:22am
This attempt took 38 minutes.
Question 1
3.2 / 3.2 pts
The entire human nervous system is organized into the central nervous
system and the _______ nervous system.
sympathetic
peripheral
somatic
autonomic
parasympathetic
Question 2
3.2 / 3.2 pts
The role of the ___________ branch of the autonomic nervous system
mediates control of organ processes when the body is essentially ______.
arterial, oxygen-poor
peripheral, active
somatic, under stress
sympathetic, at rest
parasympathetic, at rest
Question 3
3.2 / 3.2 pts
Which of the following is not an element of the spinal reflex arc?
sensory neuron
brain interneuron
motor neuron
muscle stretch receptor
effector muscle contraction
Question 4
3.2 / 3.2 pts
When a vaccine is given to a person with a healthy immune system, the
result is
a general weakening of the immune system until the vaccine is gone.
immunity to the pathogen over the next few weeks of time.
the development of immunity to a large number of different pathogens.
immediate recovery from the disease prompting the vaccination.
production of immunologic memory specific for the pathogen parts in the
vaccine.
Question 5
3.2 / 3.2 pts
All of the following are systems of the body except the:
muscular system.
integumentary system.
endocrine system.
body cavity system.
digestive system.
Question 6
3.2 / 3.2 pts
As a student runs up a flight of stairs, her integumentary system serves her
by
moderating her breathing rate to increase oxygen supplies to the muscles.
secreting hormones that affect her enthusiasm for the task at hand.
filtering waste products from her circulatory system.
giving her muscles a strong, unyielding surface to pull against.
providing moisture for evaporation to moderate her body temperature.
Question 7
3.2 / 3.2 pts
Cranial and spinal nerves of the peripheral nervous system serve
purely a motor function controlling the body’s musculature.
both sensory and motor functions carrying impulses to and from the body
parts.
as interneurons integrating signal between receptors and effectors.
mostly sensory roles informing the CNS of conditions in the body.
largely the endocrine system sending signals to glands to release hormones.
Question 8
3.2 / 3.2 pts
Which structure within the brain has the role of generating emotions?
cerebellum
limbic system
medulla oblongata
pons
cerebrum
I Question 9
0 / 3.2 pts
The function of the kidney is
the selection secretion of wastes.
reabsorption of water.
filtration of the blood.
all of the above
none of the above
Question 10
3.2 / 3.2 pts
A muscle is composed of thousands of muscle cells (fibers) bound into
groups of 100 or more fibers call __________ each of which is surrounded by
_________ tissue called perimysium.
fascia, vascular
epimysium, vesicular
sarcomeres, glandular
fascicles, connective
vesicles, nervous
Question 11
3.2 / 3.2 pts
While waiting for a signal to contract, a muscle cell membrane maintains a
slightly higher positive charge on the _______ only because ________ are
available to generate this difference.
outside, Na-K-ATPase pumps
outside, diffusion forces
inside, ion channels
inside, excess ADP molecules
interior, phospholipid vesicles
Question 12
3.2 / 3.2 pts
Which of the following is part of the human digestive system, correctly
matched to the role it plays in the digestion process?
liver: an accessory organ that processes and stores glycogen
pancreas: a tube wherein chemical and mechanical digestion occurs
kidney: a structure in which blood is filtered
hepatic portal vein: a vessel carrying blood from the intestine to the
pancreas
stomach: the principle site of nutrient absorption
Question 13
3.2 / 3.2 pts
The function of the urethra is to
carry urine from the place of storage to the exterior of the body.
receive sperm during human reproduction.
store urine prior to its voiding from the body.
remove urine from its site of formation.
remove excess water from urine during urine formation.
Question 14
3.2 / 3.2 pts
Which of the following systems of the body interact with the nervous
system?
digestive system
respiratory system
circulatory system
urinary system
all of the above
Question 15
3.2 / 3.2 pts
Fluoxetine HCl affects synapses by
destroying serotonin in synaptic spaces.
activating dopamine so that it more quickly binds its receptor.
inhibiting serotonin re-uptake by serotonin transporter proteins.
fusing sending cell and receiving cell membranes together.
binding preferentially to GABA receptors.
Question 16
3.2 / 3.2 pts
In the human immune system, the three general lines of defense are
(i) the skin, (ii) the nails, (iii) the mucous membranes
(i) the blood, (ii) the lymph nodes, (iii) the spleen
(i) the inflammatory response, (ii) macrophage activity, (iii) tears and saliva
(i)body surface barriers, (ii)non-specific responses, (iii)immune (specific)
responses.
(i) B cells, (ii) T cells, (iii) platelets
Question 17
3.2 / 3.2 pts
In the basic structure of the human heart, blood first flows through the right
atrium, then it travels to the:
right atrium
right ventricle
left ventricle
lungs
aorta
Question 18
3.2 / 3.2 pts
Which of the following is part of the human digestive system, correctly
matched to the role it plays in the digestion process?
stomach: the principle site of nutrient absorption
large intestine: tubular organ that receives indigestible chyme and absorbs
water
spleen: site of blood filtration and immune surveillance
medulla oblongata: the interior portion of pancreatic digestive system
glomerulus: a site for the accumulation of metabolic wastes
Question 19
3.2 / 3.2 pts
The structure of a human neuron is made up of a
cell body, dendrites and axons.
glomerulus, loop of Henle and afferent collecting duct.
repressor, operator and structural genes.
protons, electrons and shells.
a sheath, fibers and axons.
Question 20
3.2 / 3.2 pts
The efferent or motor branch of the peripheral nervous system is subdivided
into the ______ (voluntary) and ____________ (involuntary) nervous systems.
autonomic, somatic
autonomic, sympathetic
parasympathetic, sympathetic
somatic, autonomic
sympathetic, parasympathetic
Question 21
3.2 / 3.2 pts
The hepatic portal vein forms from capillary beds in ______________ and leads
to a second set of capillary beds in ______________.
the stomach, the kidney
the kidney, the stomach
the liver, the large intestine
the small intestine, the liver
the stomach, the small intestine
Question 22
3.2 / 3.2 pts
Which of the following is a type of neuron that receives a stimulus and
transmits it to the central nervous system?
motor neuron
interneuron
effector cell
dendritic cell
sensory neuron
Question 23
3.2 / 3.2 pts
Macrophages seek out foreign invaders in the ______________, while
neutrophils, at least initially are on patrol in the ___________.
heart ventricles, heart atria
lymph nodes, lymph vessels
bloodstream, body tissues
mast cells, basophils
body tissues, blood stream
Question 24
3.2 / 3.2 pts
Neither B lymphocytes nor T lymphocytes are able by themselves to respond
to foreign antigen. They must at some point be induced to proliferate (divide)
by
memory cells.
helper T cells.
neutrophils.
basophils.
neurotransmitters.
Question 25
3.2 / 3.2 pts
The role of the hepatic portal system is to help the _________ (organ) to
control nutrient levels in your circulatory system.
liver
