PE SAC Flashcards
What is the primary function of the musculoskeletal system?
To support the body, facilitate movement, and protect vital organs.
True or False: The musculoskeletal system consists of bones and muscles only.
False
What are the two main types of bones in the human body?
Compact bone and spongy bone.
Fill in the blank: The _____ system works closely with the musculoskeletal system to enable movement.
nervous
What is a common type of musculoskeletal injury?
Sprain.
What is the role of ligaments in the musculoskeletal system?
To connect bones to other bones at joints.
Which type of muscle is involuntary and found in the walls of internal organs?
Smooth muscle.
True or False: The cardiovascular system is responsible for transporting oxygen and nutrients throughout the body.
True
What is the main organ of the cardiovascular system?
The heart.
What are the two main components of blood?
Plasma and formed elements (red blood cells, white blood cells, and platelets).
Fill in the blank: The _____ system is primarily responsible for gas exchange in the body.
respiratory
What is the primary function of the respiratory system?
To facilitate the exchange of oxygen and carbon dioxide.
What structure in the respiratory system is known as the voice box?
Larynx.
True or False: The diaphragm is a muscle that aids in breathing.
True
What are the small air sacs in the lungs called?
Alveoli.
What is osteoporosis?
A condition characterized by weak and brittle bones.
What type of joint allows for the greatest range of motion?
Ball-and-socket joint.
True or False: Tendons connect muscles to bones.
True
What is the primary mineral found in bones?
Calcium.
What does the term ‘muscle atrophy’ refer to?
The wasting away or decrease in muscle size.
Fill in the blank: _____ is a common injury resulting from overstretching or tearing a ligament.
Sprain
What is the function of red blood cells?
To transport oxygen from the lungs to the body tissues.
What is the term for the process of breathing in?
Inhalation.