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1. Which of the following is NOT a feature of the proximal end of the ulna? ulna

ID: 3515662 • Letter: 1

Question

1.

Which of the following is NOT a feature of the proximal end of the ulna?

ulnar notch

semilunar notch

ulnar tuberosity

coronoid process

2.

Which of the following muscle/attachment pairs is correct?

adductor magnus / deltoid tubercle

sartorius / patella

biceps brachii / radial tuberosity

short head biceps brachii / supraglenoid tubercle

3.

In constructing a muscle from the smallest element to the largest, this sequence of terms is correct.

myofilament, myofibril, myofiber, fascicle

fascicle, myofilament, myofiber

endomyseum, perimyseum, epimyseum

myomeseum, perimyseum, fascia

a.

ulnar notch

b.

semilunar notch

c.

ulnar tuberosity

d.

coronoid process

Explanation / Answer

1.answer is a. ulnar notch

The proximal end of the ulna articulates with the trochlea of the humerus. Important landmarks of the proximal ulna are the olecranon, coronoid process, trochlear notch, radial notch and the tuberosity of ulna:

2. c. biceps brachii and radial tuberosity is the correct pair.

a.The adductor part attaches distally to the linea aspera, the gluteal tuberosity on the femur and the medial supracondylar line on the distal femur.

b.Sartorius muscle,long, narrow, ribbonlike thigh muscle beginning at the front of the crest of the pelvic girdle, extending obliquely down the front and side of the thigh, and inserted at (attached to) the inner and upper portion of the tibia (shinbone).

c. & d. Origin: (proximal attachments)

a. Long head: supraglenoid tubercle of the scapula.
b. Short head: coracoid process of the scapula.

Insertion: (distal attachments)
a. Radial tuberosity.
b. Bicipital aponeurosis to the fascia on the medial side of the forearm.

3.a.myofilament ----myofibril----myofiber---fascicle