The life track of men and women
The period of 1 () is the key period of visual development. If abnormal vision can be found early in this period, most of them can be corrected.
I. 1 to 3 years old
B, 4 to 6 years old
C, 7 to 9 years old
D, 10 to 12 years old
Correct answer: b
2. The following statement about sexual characteristics is incorrect ().
A, the difference between male and female reproductive organs at birth is called primary sexual characteristics.
B, the emergence of subjective characteristics is an important symbol of adolescence.
C during adolescence, there will be some obvious changes in the appearance of men and women except reproductive organs.
D, male secondary sexual characteristics are mainly induced by androgen.
Correct answer: b
3. Women are about (), and a small number of follicles begin to develop in the ovary. ()
A, 5 years old.
B, 7 years old
C, 10 years old
D, 15 years old
Correct answer: C.
4. The uterus, ovaries, breasts and other organs of the female fetus will not develop when they are in the mother's womb. ()
Correct answer:?
5.25-40-year-old men belong to the prime of life, which is the stage when all aspects of physiological functions reach the best. ()
Correct answer:?
Adolescent boys and girls
1. Lean body mass is also called metabolically active tissue, including ().
A, bones, muscles, fat, etc.
B, bones, muscles, internal organs, blood, etc.
C, bones, blood, viscera, fat, etc.
D, bones, nerves, blood, fat, etc
Correct answer: b
2. Adolescent women will have fat accumulation, and when they mature, they will be men ().
I. 1.5 times
B, twice
C, 2.5 times
D and 3 times
Correct answer: b
3. The height growth of men and women suddenly increased after puberty, and the average height of men and women increased by () cm.
a、 15、 10
b、 10、 15
28 years old, 25 years old
Day 25 and 28
Correct answer: C.
4. The sexual function of adolescent individuals is not yet mature, and they have no fertility. ()
Correct answer:?
5. The sign of male sexual maturity is ejaculation, and the sign of female sexual maturity is menarche. ()
Correct answer:?
(documentary) Surging adolescence
1. Among the following phenomena, the one that does not belong to adolescence is ().
First, emotional stability, positive.
B, rapid development of skeletal muscles.
C, the emergence of secondary sexual characteristics
D, interested in heterosexuality
Correct answer: a
2. In adolescence, under the action of hormones, glands secrete a lot of oil to block pores, thus forming acne. ()
Correct answer:?
The boy's article
1. The classification of erection does not include ().
First, psychogenic erection
Reflex erection
C, erection at night
D, irritating erection
Correct answer: D.
2. Does not belong to the nine systems of the human body is ().
First, the nervous system
vascular system
C, lymphatic system
D, sensory organs
Correct answer: C.
3. The basic unit of human structure and function is ().
I. Cells
B, lymphoid tissue
C, elements
D, muscle tissue
Correct answer: a
4. When penile erection lasts for more than 6 hours, it belongs to erectile abnormality, and you should go to the hospital in time. ()