Skeletal System and Muscle Anatomy Quiz PP3 not revised

Sesamoid Bones and Joints

• The largest sesamoid bone is the patella, located in the tendon of the quadriceps muscle.
• The trochlea is a smooth, grooved articular surface that allows for the articulation of bones, commonly found in the knee joint.

Pelvis and Skeleton Connections

• The pelvis connects to the axial skeleton via the sacroiliac joints, facilitating load transfer and stability.
• The hip joint is formed by three bones: the ilium, ischium, and pubis, which together create a ball-and-socket joint.

Muscle Functions and Characteristics

• Muscles are responsible for movement, posture maintenance, and heat generation in the body.
• The main extensor muscle of the stifle joint is the quadriceps femoris, crucial for extending the leg.
• Muscles that flex the elbow joint include the biceps brachii and brachialis, allowing for bending of the arm.

Muscle Anatomy and Movement Terminology

• Distinguishing characteristics of muscle anatomy include muscle shape, fiber orientation, and attachment points.
• Muscle movement terminology includes terms like flexion, extension, abduction, adduction, and rotation, describing different types of actions.

Naming Muscles and Bone Functions

• Characteristics of a muscle can influence its name, such as location, size, shape, or function (e.g., gluteus maximus).
• The obturator foramen primarily serves as a passageway for nerves and blood vessels, contributing to pelvic stability.

Bones of the Lower Leg and Tarsus

• The main weight-bearing bone of the lower leg is the tibia, providing support for standing and walking.
• The fibula acts as a stabilizing structure, although it does not bear weight like the tibia.
• The tarsus consists of two rows of short bones known as the proximal tarsal bones and distal tarsal bones.

Digits and Anatomy

• In the pelvic limb, metatarsal and phalangeal bones typically have five digits.
• The proximal end of the ulna features the olecranon process, essential for elbow extension and triceps attachment.

Test your knowledge of the skeletal system and muscle anatomy in this quiz! Learn about the bones of the pelvic limb, the gross anatomy of muscles, and how they are named. Identify muscles of the head, neck, and abdomen.