Podcast
Questions and Answers
What is the largest sesamoid bone?
What is the largest sesamoid bone?
- Fabellae
- Greater trochanter
- Pubis
- Patella (correct)
What is the trochlea?
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?
What attaches the pelvis to the axial skeleton?
- Pubic symphysis (correct)
- Acetabulum
- Sacraliliac joint
- Coxofemoral joint
What is the function of muscles?
What is the function of muscles?
What is the main extensor muscle of the stifle joint?
What is the main extensor muscle of the stifle joint?
What muscles flex the elbow joint?
What muscles flex the elbow joint?
What are some distinguishing characteristics of the gross anatomy of muscles?
What are some distinguishing characteristics of the gross anatomy of muscles?
What is the terminology used to describe muscle movement?
What is the terminology used to describe muscle movement?
What characteristics of a muscle can be used in its name and help identify it?
What characteristics of a muscle can be used in its name and help identify it?
Which of the following bones is NOT part of the pelvic limb?
Which of the following bones is NOT part of the pelvic limb?
What are the three bones that come together to form the ball and socket hip joint?
What are the three bones that come together to form the ball and socket hip joint?
What is the primary function of the obturator foramen?
What is the primary function of the obturator foramen?
Which bone forms part of the hip joint and fits deeply into the acetabulum of the pelvis?
Which bone forms part of the hip joint and fits deeply into the acetabulum of the pelvis?
What are the two sesamoid bones located in the proximal gastrocnemius muscle tendon called?
What are the two sesamoid bones located in the proximal gastrocnemius muscle tendon called?
Which bone is the main weight-bearing bone of the lower leg?
Which bone is the main weight-bearing bone of the lower leg?
What is the function of the fibula in the lower leg?
What is the function of the fibula in the lower leg?
What are the two rows of short bones in the tarsus called?
What are the two rows of short bones in the tarsus called?
How many digits do metatarsal and phalanges bones of the pelvic limb usually have?
How many digits do metatarsal and phalanges bones of the pelvic limb usually have?
What is the process at the proximal end of the ulna called?
What is the process at the proximal end of the ulna called?
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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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