Answer:
600
Explanation:
There are about 600 muscles in the human body. The three main types of muscle include skeletal, smooth and cardiac.
The physical changes during puberty are due to <u>secondary sex characteristics</u>
Explanation:
Origin: Secondary sex characteristics in male typically originate at the onset and develop during puberty from 9-16 years.
Mechanism: The hypothalamus of the brain initiates the release of follicular stimulating and leutinizing hormones which trigger the Sertoli cells of the testes to begin spermatogenesis and the interstitial cells of Leydig to produce the male sex hormone testosterone.
It is this release of testosterone that leads to the development of secondary sexual characteristics like:
- Muscular and strong body
- Deepening of voice
- Growth of facial, axillary (underarm) and pubic hair
- Enlargement of reproductive organs like the scrotum, testes, etc; along with penis lengthening
- Spermatogenesis begins along with feelings of sexual drive during this adolescent period
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It is true that we are all essentially the same due to our common human nature, but other aspects of who we are certainly are impacted, particularly as children, by our cultures. That impact comes primarily in five key elements: language, morality, parenting, world view, and autonomy.
One of the most obvious cultural differences is language. While every child learns his own language, of course, a child's language is more than just a vocabulary.
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Answer: Nuclear medicine
Explanation: Procedure that uses x-rays and a contrast dye injected into a vein to create an image of the vein. The image is a venogram. Nuclear medicine procedure that uses scintigraphy and an inhaled radiopharmaceutical drug to create an image of the lungs.
