16 Questions
What is the main function of arteries?
Carrying blood away from the heart
Which chamber of the heart pumps deoxygenated blood into the lungs?
Right ventricle
Why do left ventricles have thicker and muscular walls?
To pump blood at long distances in the body
What separates the heart chambers to prevent mixing of oxygenated and deoxygenated blood?
Valves
Which artery carries deoxygenated blood?
Pulmonary artery
Which blood vessel carries blood away from the heart into different body parts?
Pulmonary artery
What is the function of capillaries in the circulatory system?
Connect arteries and veins
Which blood vessel returns blood back to the heart?
Vein
Why is it important for oxygenated and deoxygenated blood not to mix inside the heart?
To maintain the oxygen supply to body tissues
What structures are responsible for preventing the back flow of blood in the heart?
Valves
At what age does puberty generally begin in boys?
9-15 years old
Which hormone is responsible for the development of secondary sexual characteristics in males during puberty?
Testosterone
Where are the female gonads located?
In the abdomen
What does FSH stimulate in females during puberty?
Production of oestrogen
Which part of the male body undergoes a growth spurt during puberty?
Shoulders and chest
What changes occur in the male reproductive system during puberty?
Production of sperm cells
Study Notes
Circulatory System
- Arteries carry oxygenated blood away from the heart to the rest of the body.
- The right ventricle pumps deoxygenated blood into the lungs.
- Left ventricles have thicker and muscular walls because they need to pump blood to the entire body, requiring more pressure.
- A septum separates the heart chambers to prevent mixing of oxygenated and deoxygenated blood.
- The pulmonary artery carries deoxygenated blood to the lungs.
- Arteries carry blood away from the heart into different body parts.
- Capillaries allow for the exchange of oxygen and nutrients with cells.
- Veins return blood back to the heart.
Heart Function
- It is important for oxygenated and deoxygenated blood not to mix inside the heart to maintain proper oxygenation and circulation.
- Valves are responsible for preventing the back flow of blood in the heart.
Puberty
- Puberty generally begins in boys around 10-14 years old.
- Testosterone is responsible for the development of secondary sexual characteristics in males during puberty.
- The female gonads (ovaries) are located in the pelvis.
- FSH (follicle-stimulating hormone) stimulates the development of follicles in the ovaries during puberty.
- The male reproductive system undergoes a growth spurt during puberty, leading to the development of testes, epididymis, vas deferens, and penis.
- During puberty, the male reproductive system matures, allowing for sperm production and fertility.
Test your knowledge of the human circulatory system with this quiz. Explore the pathways of oxygenated and deoxygenated blood flow, and learn about the structures, such as valves, that help maintain the circulation of blood throughout the body.
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