Muscles/Signals
This is what a muscle does when it becomes shorter and pulls on a bone.
Contract
This connects a muscle to a bone.
Tendon
This type of joint allows your elbow to bend and straighten.
Hinge Joint
This organ pumps blood around the body.
Heart
These blood vessels carry blood towards the heart.
Veins
Which organ system sends electrical messages around the body?
A. Digestive system
B. Circulatory system
C. Nervous system
D. Respiratory system
C. NERVOUS SYSTEM
This strong tissue connects bone to bone and helps stabilize a joint.
Ligament
This type of joint allows movement in many directions, such as at the shoulder and hip.
Ball and socket
This organ controls and coordinates many activities of the body.
Brain
These blood vessels carry blood away from the heart.
Arteries
These muscles work in pairs because when one contracts, the other usually relaxes.
This process breaks food down so the body can absorb and use its nutrients.
Digestion
Which statement about the heart is correct?
A. It breaks down food.
B. It pumps blood around the body.
C. It controls voluntary movement.
D. It exchanges oxygen and carbon dioxide.
B. It pumps blood around the body.
This long structure carries messages between the brain and much of the rest of the body. (hint: in the backbone)
Spinal cord
This is the smallest type of blood vessel and is where substances such as oxygen and nutrients can move between the blood and tissues.
Capillaries
When you bend your elbow, the biceps contracts while this muscle relaxes.
TRICEPS
This process involves taking oxygen into the body and removing carbon dioxide.
Respiration / Gas exchange
A person falls and the bones at their shoulder joint are forced out of their normal position. What injury has occurred?
Dislocation
What structure protects the heart and lungs?
Ribs / Rib cage
A muscle cell needs oxygen and glucose to release energy. Which two body systems work together to deliver these substances to the cell?
Respiratory and Circulatory systems
A student straightens their arm after bending it. Explain what happens to the biceps and triceps.
The triceps contracts while the biceps relaxes.
Which structure connects a muscle to a bone?
A. Ligament
B. Tendon
C. Cartilage
D. Joint
A person has painful, stiff joints caused by damage or changes to the tissues around the joint. What condition could this be?
Arthritis
What do cells use for energy?
Glucose
A student runs quickly around a field. Their muscles need more energy, so their breathing becomes faster and their heart beats faster.
Question:
Explain how at least THREE organ systems work together during exercise.
The nervous system coordinates the body's response.
The respiratory system brings in more oxygen and removes carbon dioxide.
The circulatory system transports oxygen and glucose to the muscles and carries waste away.
The muscular system contracts to produce movement.