Cardiovascular System
The heart chambers include two atria and two THESE, muscular pouches that pump blood into outgoing blood vessels
What are ventricles?
Among other functions, the nasal cavity is responsible for olfaction, which is the body's sense of THIS
What is smell?
This energy molecule, made in the mitochondria, is essential for muscles to contract
What is ATP?
This upper arm bone is an attachment point for the biceps muscle, so that the shoulder and elbow joints can move
What is the humerus?
A component of many of our joints, these strong straps of connective tissue hold bones together and help direct the way the joint moves
What are ligaments?
These microscopic blood vessels in the body tissues like the muscles, liver, and brain, are where oxygen gets "dropped off" and carbon dioxide gets "picked up"
What are capillaries?
The largest structures of the respiratory system are protected by this structure of the skeletal system
What is the ribcage?
If this muscle group is injured, a person might feel pain on the back of the thigh
What are the hamstrings?
These are the longest bones in the body, and are an attachment point for the quadriceps muscles in the thighs
What are the femur bones?
In certain types of joints, this specialized type of connective tissue provides a layer of padding on the ends of bones
What is cartilage?
These structures, present in both the heart and in veins, are connective tissue flaps that open and close to ensure that blood travels in only one direction.
What are valves?
Of pharynx, larynx, or trachea, the one that is commonly called the voice box
What is the larynx?
_____ and myosin are two of the muscle proteins essential for muscle contraction
What is actin?
Risk factors for bone fracture include age, smoking, and low THIS, a measurement calculated using a person's height and weight
What is BMI?
Of fibrous, cartilaginous, or synovial, sutures of the skull are this type of joint
What is fibrous?
This chamber of the heart pumps blood into blood vessels that lead to the lungs
What is the right ventricle?
This respiratory system structure is an airway in the chest that is held open by rings of cartilage.
What is the trachea?
Of elasticity, extensibility, or excitability, the one that means muscle tissue can return to original length once its stretched
What is elasticity?
Weight-bearing exercise can be beneficial for bones. Of running, squatting and swimming, the one that is NOT considered a weight-bearing exercise
What is swimming?
Of synovial, fibrous, or cartilaginous, the joint type that is the most moveable
What are synovial joints?
This heart chamber receives well-oxygenated blood from the lungs
What is the left atrium?
These structures of the lungs increase the surface area for gas exchange such that oxygen and carbon dioxide can be exchanged very efficiently.
What are alveoli?
Of obliques, rectus abdominis, or erector spinae, the muscle group that sits diagonally on both sides of the torso
What are the obliques?
The two bone cell types that help keep calcium levels regulated in the blood are osteoblasts to build bone, and THESE, the cells responsible for resorbing bone
What are osteoclasts?
The knee joint is formed by the articulation of the femur and tibia bones, as well as this small, roundish bone that sits closer to the skin
What is the patella?