skeletal structure
This type of bone is longer than it is wide and includes the femur and humerus.
long bone
This muscle contracts when you bend your elbow and is located on the anterior upper arm.
Biceps brachii
Bending the knee decreases the angle between the femur and tibia.
Flexion
A person falls directly onto their knee and damages the knee cap. What is the name for this bone?
Patella
During shoulder abduction, this muscle provides the majority of the force after the initial ~15° initiated by the supraspinatus. It originates from the acromion and clavicle and inserts on the deltoid tuberosity of the humerus.
Deltoid
The shaft of a long bone is called this.
Diaphysis
When the biceps contracts while the triceps relaxes during elbow flexion, this type of muscle relationship is demonstrated.
Antagonistic relationship
The shoulder and hip are examples of this type of synovial joint.
Ball-and-socket joint
A basketball player tears a ligament connecting the femur and tibia inside the knee. Which major ligament could be involved?
ACL or PCL
The three bones that fuse together to form each side of the pelvis include the ilium, ischium, and...
The Pubis
This structure at the end of a long bone contains spongy bone and helps form a joint
Epiphysis
A muscle that performs the primary movement during an action is called this.
Agonist (prime mover)
Turning the palm so it faces downward is called this movement
Pronation
A person has difficulty extending their elbow after an injury to the posterior upper arm. Which major muscle may be damaged?
Triceps brachii
This structure is the strong band of connective tissue that connects the femur to the tibia on the lateral side of the knee and helps resist excessive inward movement of the knee. →
Lateral collateral ligament (LCL)
This type of bone tissue contains osteons arranged in cylindrical units.
Compact bone
When a muscle produces tension without changing length, this type of contraction occurs.
Isometric contraction
Moving a limb away from the body's midline is called this movement
Abduction
A tendon connecting the calf muscles to the heel bone is torn. What is this tendon called?
Achilles tendon
This triangular bone is located between the lumbar vertebrae and coccyx and forms the posterior portion of the pelvis.
Sacrum
A fracture that breaks through the skin and exposes the bone is classified as this.
compound fracture
During the downward phase of a biceps curl, the biceps lengthens while still producing tension.
Eccentric contraction
The shoulder's socket that receives the head of the humerus is called this.
Glenoid cavity
The patellar tendon attaches below the kneecap to this bone.
Tibia
This muscle crosses both the hip and knee joints. It flexes the hip and extends the knee, making it an important muscle during activities such as kicking and running.
Rectus femoris