Answer the following statements true (T) or false (F)
1. One function of the sex hormones is to stimulate the development of the secondary sex characteristics.
2. When the tunica adventitia enters the testicle it is called the seminiferous tubule.
3. The bulk of the testes is made up of interstitial cells that produce testosterone.
4. Sperm precursors or stem cells are called spermatogonia.
5. Under the influence of FSH, the spermatogonium divides to form two primary spermatocytes.
1. TRUE
2. FALSE
3. FALSE
4. TRUE
5. FALSE
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The role of acetylcholine in the digestive tract is to _________, while the role of norepinephrine is to ______
A. stimulate, stimulate B. stimulate, inhibit C. inhibit, inhibit D. inhibit, stimulate
The nervous and endocrine systems are the body's two main regulatory systems. Describe some of the ways that the autonomic nervous system and the endocrine system interact
What will be an ideal response?
Protein channels that are situated between cells and create small pores for the passage of small substances are known as:
A) occluding junctions. B) gap junctions. C) tight junctions. D) desmosomes.
Damage to the substantia nigra causes a decrease in the neurotransmitter dopamine. This causes a gradual, generalized increase in muscle tone, which is the main symptom of
A) Parkinson's disease. B) rabies. C) Alzheimer's disease. D) myasthenia gravis. E) tetanus.