Right or wrong
Tick √ for the right and × for the wrong.
1. In pre-puberty, boys are about 16 years old and girls are about 14 years old.
(
×)
2. It causes abnormal pelvic position and morphological development, so girls should not jump from heights to hard ground.
(×
)
2. Fill in the blanks.
1. A person has to go through two growth peaks from birth to sound development. The first growth peak is
initial stage
The second is adolescence.
2. In adolescence, the change of human visceral function is mainly manifested as cardiac output.
Vital capacity/breathing capacity
secondary sexual characteristics
3. From the back and front, the spine is straight, and from the side, there are cervical curvature, thoracic curvature and lumbar curvature, as well as sacrum.
Qusi
Bending is a normal physiological bending.
3. multiple choice questions.
1. The main route of transmission of pseudohepatitis is (a)
)。
A. oral cavity
B. blood
C. shake hands
D. discussion
The color of blood is red because it contains a lot of (B).
)。
A. white blood cells
B. red blood cells
C. red pigment
D. platelets
3. During blood transfusion
blood type B
Can only lose to (D).
A.
Type a blood
human
People with type b blood.
C.
Type O blood
human
D.
Ab blood group
human
4. Healthy children in primary schools should be guaranteed every day.
Sleep time
Yes (c)
)。
A.6 hours
B.8 hours
C. 10 hour
D. 12 hours
5. Adolescent formation
Abnormal curvature of spine
The main reasons are (1)
)。
A. Bad posture
B. Heredity
C. Heavy physical labor
D. Sports activities