Musculoskeletal Anatomy

Question 0

Which bone is the first to begin ossification?

Answer 0

Clavicle (also last to completely ossify)

Question 1

Intra-cartilaginous ossification includes ALL long bones except the _______?

Answer 1

Clavicle

Question 2

Zygapophyseal & acromio-clavicular are examples of what type of synovial joint?

Answer 2

Gliding (planar)

Question 3

The 1st carpo-metacarpal joint is considered what?

Answer 3

Saddle (sellar)

Question 4

In general, the articular surfaces of all synovial joints are covered by _____ ______?

Answer 4

Hyaline cartilage

Question 5

What connects Haversian canals w/in bone?

Answer 5

Volkmann’s canals (supply nutrients and remove waste)

Question 6

What part of cartilage has blood vessels?

Answer 6

outer layer called the Perichondrium

Question 7

What are the 3 types of cartilage?

Answer 7

1. Hyaline (most abundant)
2. Elastic
3. Fibrocartilage

Question 8

Individual muscle fibers are surrounded by connective tissue called?

Answer 8

endomysium

Question 9

What muscles are responsible for elevation of the temporomandibular joint? (Jaw)

Answer 9

temporalis, masseter, medial pterygoid

Question 10

What muscles are responsible for depression of the temporomandibular joint?

Answer 10

mylohyoid, digastric, lateral pterygoid

-Also realize that gravity plays a role

Question 11

Innervation of the glenohumeral (shoulder) joint?

Answer 11

Axillary and suprascapular nerves

Question 12

Abduction of the shoulder is initiated by ______ muscle and completed by the ________ muscle?

Answer 12

Supraspinatus (0-15 degrees)

Deltoid (15-90 degrees)

Question 13

Whats the innervation to the sternoclavicular joint?

Answer 13

Medial branch of the supraclavicular nerves (C3) and nerve to subclavius

Question 14

What muscles act to flex the elbow joint?

Answer 14

Biceps brachii, brachialis, brachioradialis

Question 15

What muscles act to extend the elbow joint?

Answer 15

Triceps and anconeus

Question 16

Innervation to the elbow joint?

Answer 16

Radial and musculocutaneous nerves

Question 17

The wrist joint is technically between what bones?

Answer 17

Distal end of radius, scaphoid, and lunate bones

Question 18

The carpal bone that’s involved in the 1st carpometacarpal joint is the _____?

Answer 18

Trapezium

Question 19

What hip ligament contains the central foveolar artery?

Answer 19

Round ligament of the head of the femur- in children only (absent in adults)

Question 20

What muscle controls medial rotation in the knee joint?

Answer 20

Popliteus

Question 21

What is the job of the ACL and PCL?

Answer 21

Prevent anterior and posterior movement of the tibia on the femur, respectively

Question 22

Which of the menisci attach’s to a collateral ligament in the knee?

Answer 22

Medial meniscus

Question 23

What nerve supply’s the tibiofibular joint?

Answer 23

Deep peroneal nerve (deep fibular)

Question 24

Does inversion and eversion occur at the ankle joint?

Answer 24

No (only dorsiflexion and plantarflexion)

Question 25

What 4 male reproductive parts arise from the Wolffian (mesonephric duct)?

Answer 25

Seminal vesicle, Epididymis, Ejaculatory duct, & Ductus deferens S.E.E.D.

Question 26

Sperm mature in the ________ and are then stored in the ________?

Answer 26

Epididymis, Ductus deferens

Question 27

The corpora of the penis are enclosed within a fibrous sheath known as?

Answer 27

Buck's fascia

Question 28

What nerves innervate the penis?

Answer 28

Pudendal nerve (penile branch) and pelvic splanchnic nerves S2, 3, and 4

Question 29

The Fallopian tubes are lined with what kind of cells?

Answer 29

Ciliated columnar epithelium

Question 30

The ovaries are supplied by the ovarian artery which is a branch of what?

Answer 30

Abdominal aorta at L2 level

Question 31

What is the Broad Ligament?

Answer 31

A double layer of peritoneum that covers the uterus and the uterine tubes like a sheet

Question 32

The part of the broad ligament that contains the uterine tube is called?

Answer 32

Mesosalpinx

Question 33

What is the subpubic angle in males compared to females?

Answer 33

Males- 45 degrees | Females- 85 degrees