What are the characteristics of physical development in junior high school?

Adolescent boys generally begin to protrude from the Adam's apple, their beard begins to darken, they begin to grow taller, their voices are rough, and their sperm is lost, while girls generally have menstruation, their breasts begin to develop, and their voices are shrill and thin.

Junior high school students are in the prime of their lives, that is, the rebellious period of adolescence, and junior high school students at this time, according to their inner world, prescribe the right medicine. Psychological characteristics are the most critical. It is necessary to convince people with reason, persuade and educate, and not fight.

In a critical period of physical and mental development, especially in terms of personality, in a rebellious period, special attention should be paid to it.

The characteristics of students' physical and mental development are: sequential, staged, complementary, unbalanced and different.

You can memorize the formulas that are in order, so that you can memorize them

The physical and mental development of junior high school students is actually very fast, because junior high school is the fastest period for growing taller, and secondary sexual characteristics also begin to appear, and the other is to begin to have some hazy feelings about love.

What are the characteristics of the physical and mental development of junior high school students? I feel that there is a certain amount of health and mental health in the treatment of the body.

What are the characteristics of the physical and mental development of junior high school students? When a junior high school student is in an adolescence, well, he is the most important years of growth, and as for what characteristics his physical and mental development have, there seems to be nothing particularly special.

Junior high school students are the mature stage of children to puberty, and the second characteristic maturity is easy to produce rebellious psychology when excited, so schools and parents should pay attention to the education and cultivation of adolescents and adolescents.

The body and mind of a junior high school student, he is more rebellious, he doesn't listen to adults, well, you have to tell him well, let him understand the stakes.

There are many characteristics of the physical and mental health development of junior high school students, such as the physical development of junior high school students is gradually maturing, and the thoughts of junior high school students are in a fluctuating stage.

The laws of students' physical and mental development are sequential, staged, complementary, unbalanced, and different.

You can memorize the formulas that are in order, so that you can memorize them

The voice will change, the Adam's apple will grow, the second child will grow hairy, and he won't warp up when he sees you.

The development of physical functions is different at different ages, and the resting heart rate, lung capacity, and blood pressure are different, and there are differences between men and women, and between urban and rural areas; Cardiopulmonary function in adolescents gradually increases with age.

1. The heartbeat of junior high school students gradually decreases with age, about 80 beats per minute.

2. The respiratory rate of junior high school students gradually decreases with age, 18-22 times per minute.

3. The lung capacity of junior high school students increases with age, which is about 2500-3000 ml for boys and 2000-3000 ml for girls.

4. The blood pressure of junior high school students increases with age, with systolic blood pressure at 14-15 kPa and diastolic blood pressure at kPa.

The characteristics of the development of the student's body and morphological foci are (),

a.Wavy and phased.

b.Gender differences.

c.Imbalance.

d.Diversity looms.

Correct Answer: Wavy and Phased; Gender differences. Imbalance.