Skeletal System and Muscle Anatomy Quiz PP3 not revised

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Questions and Answers

What is the largest sesamoid bone?

Fabellae

Greater trochanter

Pubis

Patella (correct)

What is the trochlea?

Processes where hip and thigh muscles attach

Head fits deeply into acetabulum of pelvis

Forms the hock joint with the tarsus

Articular groove found on the femur that the patella sits in (correct)

What attaches the pelvis to the axial skeleton?

Pubic symphysis (correct)

Acetabulum

Sacraliliac joint

Coxofemoral joint

What is the function of muscles?

All of the above Signup and view all the answers

What is the main extensor muscle of the stifle joint?

Quadriceps femoris muscle Signup and view all the answers

What muscles flex the elbow joint?

Biceps brachii muscle Signup and view all the answers

What are some distinguishing characteristics of the gross anatomy of muscles?

All of the above Signup and view all the answers

What is the terminology used to describe muscle movement?

Prime mover, antagonist, synergist Signup and view all the answers

What characteristics of a muscle can be used in its name and help identify it?

All of the above Signup and view all the answers

Which of the following bones is NOT part of the pelvic limb?

Radius Signup and view all the answers

What are the three bones that come together to form the ball and socket hip joint?

Ilium, Ischium, Pubis Signup and view all the answers

What is the primary function of the obturator foramen?

To lighten the weight of the pelvis Signup and view all the answers

Which bone forms part of the hip joint and fits deeply into the acetabulum of the pelvis?

Femur Signup and view all the answers

What are the two sesamoid bones located in the proximal gastrocnemius muscle tendon called?

Fabellae Signup and view all the answers

Which bone is the main weight-bearing bone of the lower leg?

Tibia Signup and view all the answers

What is the function of the fibula in the lower leg?

Muscle attachment site Signup and view all the answers

What are the two rows of short bones in the tarsus called?

Proximal row, Distal row Signup and view all the answers

How many digits do metatarsal and phalanges bones of the pelvic limb usually have?

Four Signup and view all the answers

What is the process at the proximal end of the ulna called?

Olecranon Signup and view all the answers

Study Notes

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.

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Description

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.