1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stepladder [879]
3 years ago
15

After Theo turned 13, he noticed that his voice deepened and the hair on his arms and legs grew thicker and darker. Both of thes

e physical changes are considered to be typical changes in boys' __________ that occur during puberty.
Health
1 answer:
vfiekz [6]3 years ago
8 0

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 .
You might be interested in
The Occupational Safety &amp; Health Act (OSHA) covers all employers in all states.
topjm [15]
False Because some States provide their own Occupational Health and Safety programs which could be more strict or apply stronger regulations to companies with employees. Good example is Cal OSHA which is the state OSH of California.
3 0
3 years ago
How long should the rest period be between anaerobic bursts of exercise?
Alex Ar [27]

Answer: Brief, sometimes less than 2 minutes.

5 0
3 years ago
Read 2 more answers
Which of the following statements BEST describes an opportunistic infection (OI)?
Xelga [282]
D is the answer. Your welcome
4 0
3 years ago
Read 2 more answers
About thirty minutes after eating a seafood sampler at your restaurant, a customer complains of numbness in his mouth, dizziness
amm1812
The customer is probably having an allergic reaction to something on the seafood platter.
6 0
3 years ago
Read 2 more answers
Use Goegle Search to find the definition of "Mentel Health". Write a brief paragraph explaining how it effects one's overall hea
kupik [55]

Explanation:

definition of "Mental Health"- a person’s condition with regard to their psychological and emotional well-being.

how it effects- affects how we think, feel, and act. It also determines how we handle stress, relate to others, and make healthy choices. Mental health is important at every stage of life, from childhood and adolescence through adulthood.

6 0
2 years ago
Read 2 more answers
Other questions:
  • All of the following are true about eating prior to exercise EXCEPT:
    15·2 answers
  • Alice is buying an over-the-counter cough syrup. She has a choice between a brand-name drug and a generic version of the medicat
    8·2 answers
  • Which is an example of a food group?
    5·2 answers
  • Lymph nodes are most often found in the _______, ________ and _________ of the body.
    7·1 answer
  • Which of these hormones is secreted by the posterior lobe of the pituitary gland?
    11·1 answer
  • You can die the first time you use inhalants.<br> OA true.<br> OB false.
    15·1 answer
  • Which description indicates a problem with the social aspect of health?
    9·1 answer
  • Which of the factors of industrialization does Baines
    9·2 answers
  • What is the most best word in the whole world and that you can be good
    13·1 answer
  • Guys i need advice how can i show my love for my gf because now she's mad at me
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!