BIO291 Lab III Review

What occurs when you pull on the biceps?

Flexion at the elbow

Is the biceps a flexor or extensor?

flexor

Where is the origin of the biceps and triceps brachii?

Shoulder/Scapula

Where is the insertion of the biceps brachii?

Radius

What part of the arm moves when you pull on the biceps?

Forearm

What part of the arm is relatively immobile

Shoulder

How does bicep brachii movement relate to its origin and insertion point?

Shoulder joint does not move while the radius muscle does

What happens when you pull on the triceps?

Extension at the elbow

Is the triceps an extensor or flexor?

extensor

Where is the insertion of the triceps brachii?

The elbow

What kind of tissue attaches muscle to bones?

Tendon

What of tissue attaches bones to bones?

Ligaments

Forearm extensors are located on which side of the forearm?

Top of the forearm

Forearm flexors are located on which side of the forearm?

Bottom of the forearm

What do the forearm extensors do?

Hyperextend the wrist

What do the forearm flexors do?

flexion at the wrist

Humerus

upper arm bone

Radius (Thumb & Rad)

lateral bone of the forearm

Ulna (P.U)

medial bone of the forearm

What is an alula?

Chicken Thumb/Pollex

Which muscles of the thigh are the extensors?

Quadriceps

Identify and describe the hipbone

Bone that serves as the attachment point for the femoral head via the acetabulum

Femur

Long bone that extends from the hip bone

Fibula

Small thin bone below the knee, more lateral

Tibia

Larger more medial leg bone below the knee

What kind of joint is the hip joint?

Ball & Socket

Where do you find cartilage in the hip joint?

Covering the femoral head and acetabulum

What bones articulate with the spine

hip bone

MCL (Medial Collateral Ligament)

Attached to the tibia toward the middle region of the body

LCL (Lateral Collateral Ligament)

Connects the femur to the fibula, located laterally away from the body on the fibula side

ACL (Anterior Cruciate Ligament)

Ligament that is inside the knee and in front of the PCL

PCL (Posterior Cruciate Ligament)

Ligament inside the knee that snakes behind the ACL

Meniscus

Piece of cartilage that help stabilize the knee, located between the tibia and femur