Circulatory and Skeletal Systems Overview

Greg and Jared introduce the circulatory and skeletal systems. The circulatory system, also known as the cardiovascular system, circulates blood and nutrients through the body, involving the heart, blood, and vessels. The heart has four chambers and pumps blood through the body, with arteries, veins, and capillaries playing distinct roles. The skeletal system provides structure and support, consisting of the axial and appendicular skeletons. Bones are living organs that produce bone marrow, which forms new red blood cells. Overproduction of these cells can lead to diseases like leukemia.

What are the two main systems discussed in the introduction?

• Muscular and Integumentary

• Nervous and Endocrine

• Circulatory and Skeletal

• Digestive and Respiratory

What is the primary function of the circulatory system?

• To digest food

• To control body temperature

• To circulate blood and transport nutrients

• To protect against infections

Which chamber of the heart receives blood returning from the body?

• Right Atrium

• Left Atrium

• Right Ventricle

• Left Ventricle

What is the role of arteries in the circulatory system?

• To exchange nutrients with tissues

• To carry blood to the heart

• To store blood

• To carry blood away from the heart

Which type of blood vessel allows nutrient exchange with tissues?

• Capillaries

• Veins

• Lymphatic vessels

• Arteries

What are the two main parts of the skeletal system?

• Cranial and Spinal

• Axial and Appendicular

• Anterior and Posterior

• Upper and Lower

Which bones are part of the axial skeleton?

• Cranium and Ribs

• Scapula and Clavicle

• Humerus and Radius

• Pelvis and Femur

How does the skeletal system assist the circulatory system?

• By storing oxygen

• By filtering blood

• By producing bone marrow

• By regulating blood pressure

What is the consequence of producing too many blood cells?

• Anemia

• Leukemia

• Hemophilia

• Thrombosis

What is the function of bone marrow in the skeletal system?

• To store calcium

• To produce new red blood cells

• To support muscle attachment

• To protect internal organs