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Biod 151 essential human anatomy and physiology i module m16 exam - requires respondus lockdown browser + webc

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  • August 26, 2024
  • 8
  • 2024/2025
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  • biod 151 essential human anatomy and physiology

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BIOD 151 Module 6 Exam


1. Explain two reasons why a woman with low levels of LH would not be able
to become pregnant.: (1) LH acts on the ovary to cause ovulation to occur. (2)
LH causes progesterone release to facilitate potential fertilization of the egg and
pregnancy. Progesterone is a key hormone for the maintenance of pregnancy.

2. Would you expect a female to have testosterone in their bloodstream?
Explain why or why not.: (1) Yes. Both male and female bodies produce "all" the
sex hormones. However, the ratios are different. (2) The adrenal glands are
largely responsible for producing this "opposite" hormone that the ovaries would
not.
3. Label the endocrine glands (A-C): A: Pineal gland B: Hypothalamus C:
Pituitary gland
4. Explain the concept of negative feedback and how it helps to maintain
homeostasis.: 1- The effect or increased level of the hormone acts to shut down
the con!nued release of the hormone. 2- The brain is constantly monitoring
hormone levels to keep levels within a certain range or set-point (homeostasis).
Nega!ve feedback is a way of "turning off" hormone produc!on when the desired
level is achieved
5. 4. Explain the concept of positive feedback. Give an example of a hormone
that works through positive feedback.: 1- Positive feedback is the action of a
hormone increasing the production of that hormone. (This is the opposite of
negative feedback). 2- One example is the action of oxytocin causing the uterus
to contract during labor. Oxytocin enhances the effect of the uterus contractions,
causing more oxytocin to be released. The positive feedback loop is stopped
once the baby is born and the uterus no longer needs to contract, stopping the
production of oxytocin.
6. This type of hormone is derived from cholesterol:
A. Peptide hormones
B. Catecholamines
C. Steroid hormones
D. Tyrosine: C
8. 5. This type of hormone is derived from proteins:
A. Peptide hormones
B. Catecholamines
C. Steroid hormones
D. Tyrosine: A

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, BIOD 151 Module 6 Exam


9. 6. Growth hormone____
A. is most active during childhood/adolescence.
B. can cause disease if levels are not correct.
C. cannot affect an adult.
D. A &B: D
10. 6. Growth hormone______
A. is most active during adulthood.
B. is produced by the anterior pituitary gland.
C. underproduction is called acromegaly.
D. A &C: B
11. 7. Neurosecretory cells are a part of what endocrine organ? Thalamus
Pituitary
Cerebellum
Hypothalamus: Hypothalmus
12. 7. Neurons in the hypothalamus are called ______
Neurosecretory
Vasopressin
Melanocytes
Somatotropic: Neurosecretory
13. 8. Which hormone production is increased with sunlight?
MSH -melanocyte stimulating hormone
Melatonin
Cortisol
GH -Growth hormone: MSH -melanocyte stimulating hormone
14. 8. Which hormone production is decreased with sunlight?
A. MSH -melanocyte stimulating hormone
B. melatonin
C. cortisol
D. GH -Growth hormone: B
15. 9. The posterior pituitary stores these two hormones:
ADH and LH
ADH and Oxytocin
LH and FSH

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