Download Homeostasis Review

Homeostasis Unit
HOMEOSTASIS
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Negative Feedback (How does a home heating system work?)
Temperature Regualtion in the Body (How does the body respond when it gets too hot?)
THE URINARY SYSTEM
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The role of excretion (Why must nitrogrogenous waste be disposed of? What forms does this take in varous
animals?)
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Excretion in other animals (Where would you find malphigian tubules?)
The Anatomy of the Human Urinary System (Describe the structure of the kindney.)
The Nephron and Urine Production (Compare reabsorption with secretion.)
Water balance (How does the body respond when osmotic pressure rises?)
Diseases of the kidney (How does diabetes insipidus differ from diabetes mellitus?)
THE ENDOCRINE SYSTEM
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The Hypothalamus and Pituitary (Why is the pituitary often called the Master Gland?)
Types of Hormones (How does the action of steroid hormones differ from peptide hormones?)
Human Hormones (Give an example of a pair of hormones with opposing functions.)
THE NERVOUS SYSTEM
Divisions of the Nervous system (How does the peripheral nervous system differ from the central nervous system?
Neurons (Describe the structure of a neuron.)
The Reflex Arc (List the steps in response to a stab in the big toe.)
A Nerve Impulse (Describe the state of a neuron’s membrane before it is stimulated.)
The Synapse (How is an impulse passed to the next neuron in a path?)
The Brain and Spinal Cord (What is the role of the Corpus callosum?)
The Autonomic Nervous System (Give an example of the result of stimulation by the Symapatehetic Nervous
system.)
Vision
(What structures does light pass through to get to the retina?)
THE IMMUNE SYSTEM
Types of Immunity (Give an example of natural passive immunity.)
The Bodiy’s Three Lines of Defense (Describe how the body reacts to a break in the skin.)
Self Quiz
Chapter 7
Chapter 8
Chapter 9
Chapter 10
all
ignore
All but 6 and 7
ignore
Part A
Multiple Choice
1.
The attempt of the body to reverse changes in its
condition is referred to as
a. Adaptation
b. Homeostasis
c. Negative feedback
d. All of the above
e. b and c only
8.
Which disease is caused by destruction of special cells
on the pancreas.
a. Bright’s disease
b. Diabetes insipidus
c. Diabetes mellitus
d. Kidney Stones
e. None of the above.
2.
Which of the following would be one of the respnses to
rising body temperature?
a. Constriction of blood vessel in the skin
b. Contraction of smooth muscle around hair follicles
c. Rythmic contraction of skeletal muscles.
d. All of the above.
e. None of the above.
9.
Which of the following is not a part of the peripheral
nervous system.
a. Cerebral lobes
b. Motor neurons
c. Parasympathetic nerves
d. Sensory neurons
e. Sympathetic nerves
3.
Which of the following excretes most of its nitrogenous
waste as uric acid?
a. Frogs
b. Geckos
c. Humans
d. Rabbits
e. Salmon
10. Which of the following statements is true.
a. Nerve and neuron are synonomous terms.
b. Neurons carry messages in both directions.
c. One neronal cell may run from your big toe to your
spinal chord.
d. Neurons have no nuclei
e. All of the above are true.
4.
Which of the following statements is true?
a. The urethra carries urine to the bladder.
b. The out layer of the kidney is the medulla
c. Urea is a subtance that is formed in the kidney.
d. The hepatic artery delivers blood to the kidney.
e. Urine collects in the renal pelvis before leaving the
kidney.
11. Which of the following occurs first.
a. Neurotranmitters are digested by enzymes.
b. Synaptic vessicles join with the membrane of the
presynaptic neuron.
c. Neurotransmitters bind to receptors on the
postsynaptic membrane.
d. Neurotranmitters travel across the synaptic cleft.
e. An impusle begins in the post-synaptic membrane.
5.
Which of the following does not usually enter
Bowman’s capsule?
a. Glucose
b. Protein
c. Salt
d. Urea
e. Water
6.
7.
Which of the following could be described as “blood to
nephron”
a. Fitration
b. Reabsorption
c. Secretion
d. Both a and b
e. Both a and c
Which of the following would lead to the release of
aldosterone?
a. A decrease in blood pressure
b. An decrease in blood osmotic pressure.
c. An increase in blood pressure
d. An increase in blood volume
e. An increase in blood osmotic pressure.
12. Which of the following is not an effect of
neurotransmitters.
a. They stimulate an impulse in a neuron.
b. They make it more difficult for an impulse to start
in a neuron.
c. They make it easier for an impulse to start in a
neuron.
d. They stop a neuron from passing messages.
e. All of the above are possible effects.
13. Which of the following statements is true?
a. Neurons fire at a variety of strengths.
b. Neurons can carry a message indefinitely.
c. Neurons require no time to recover.
d. Neurons cannot regenerate their axons.
e. None of the above are true.
14. Which part of the brain connects the nervous and
endocrine systems.
a. Cerebellum
b. Cerebrum
c. Corpus callosum
d. Hypothalamus
e. Pineal body
15. Which is a role of cerebrospinal fluid?
a. Cushioning the brain.
b. Providing nutrients to the brain and spinal cord
c. Removing waste products
d. Fighting infection
e. All of the above
18. Which of the following is an example of artifical active
immunity?
a. Catching chicken pox
b. Getting antibodies in breast milk
c. Getting an injection of antibodies made in a rabbit.
d. Getting vaccinated for the influenza.
e. None of the above.
16. Which of the following would be an effect of
stimulation by the parasympathetic nervous system?
a. Increasing breathing rate.
b. Increasing the concetration of glucose in the blood.
c. Relaxing the bladder sphincter
d. Slowing digestive processes
e. Slowing heart rate
19. Which of the following is not a part of the body’s first
line of defense against infection?
a. Phagocytes.
b. Mucus membranes
c. Skin
d. Stomach acid
e. Sweat
17. Most of the bending of light rays to focus them on the
retina is done by the
a. Cornea
b. Iris
c. Lens
d. Pupil
e. Sclera
Part B Description Questions
1. Follow the path of a nitrogen from its removal from an amino acid to being deposited in
the kidney.
2. How does the body respond to mild dehydration?
3. What is hemodialysis?
4. How does a steroid hormone differ from a peptide hormone in how it affects target cells?
5. Describe the “all or none” response.
6. Describe how an impulse moves along a neuron.
Part C Explanation Questions
7. Why is homeostasis important?
8. Explain how the structure of a nephron is related to its function.
9. Compare how endocrine messages differ from nervous messages.
1e
2e
3b
4e
5b
15e
16e
17a
18d
19a
6e
7a
8c
9a
10c
11b
12e
13e
14d