Heart & Circulation
Which side of the heart pumps oxygen-poor blood to the lungs?
The right side
The study of the respiratory system.
Pneumology
Tendons connect this to bone.
Muscle
The largest bone in your body
Femur
The outermost layer of skin.
Epidermis
The doctor who treats diseases of the heart.
Cardiologist
The tiny air sacs in the lungs where gas exchange occurs.
Alveoli
This muscle raises your arms outward to the side.
Deltoid
The section of the vertebral column that bears the most weight.
Lumbar
The pigment that gives skin its color and UV protection.
Melanin
The valves between the atria and ventricles are called what?
Atrioventricular (A-V) valves
The flap that prevents food from entering the airway when swallowing.
Epiglottis
The muscle group that bends the knee.
Hamstrings
The strongest, most mobile joint type (e.g., hip, shoulder).
Ball-and-socket joint
The gland that produces oil to keep skin soft.
Sebaceous gland
In a blood pressure of 120/80, the 120 represents what?
Systolic pressure
The muscle that contracts to draw air into the lungs.
Diaphragm
Muscles shrinking from lack of use is called what?
Atrophy
This tissue cushions bones at their ends.
Cartilage
The invisible film of bacteria on teeth.
Plaque
Blood flowing from the right ventricle to the lungs travels through what vessels?
Pulmonary arteries
This builds up in muscles during anaerobic activity.
Lactic acid
Muscles growing larger due to training is called what?
Hypertrophy
The type of joint that allows rotation, such as in the neck.
Pivot joint
A warning sign of melanoma is when a mole shows this change.
Asymmetry – one half doesn’t match the other Border irregularity – edges are notched or uneven Color change – multiple or changing colors Diameter