Question 1

Which structure of the scapula serves as the point of articulation with the clavicle?

Accepted Answer

Acromion process

Question 2

A patient suffers a fracture at the surgical neck of the humerus. Which major nerve is most at risk of injury in this scenario?

Accepted Answer

Radial nerve

Question 3

Which muscle originates from the ischial tuberosity and inserts on the tibia and fibula, and what is its primary action?

Accepted Answer

Biceps femoris; flexes knee and extends hip

Question 4

Which bone of the pectoral girdle directly articulates with the sternum?

Accepted Answer

Clavicle

Question 5

A soccer player injures the lateral malleolus. Which bone is affected?

Accepted Answer

Fibula

Question 6

Which muscle is part of the rotator cuff and is responsible for initiating abduction of the arm?

Accepted Answer

Supraspinatus

Question 7

Which carpal bone is most commonly fractured when someone falls on an outstretched hand?

Accepted Answer

Scaphoid

Question 8

Which structure forms the socket of the hip joint?

Accepted Answer

Acetabulum

Question 9

A patient presents with difficulty plantar flexing the foot and a weak Achilles tendon reflex. Which muscle is most likely affected?

Accepted Answer

Gastrocnemius

Question 10

Which anatomical feature distinguishes the male pelvis from the female pelvis?

Accepted Answer

Female pelvis has a rounder pelvic brim

Question 11

Which muscle inserts on the olecranon process of the ulna and is responsible for extension of the forearm?

Accepted Answer

Triceps brachii

Question 12

Which tarsal bone articulates directly with the tibia to form the ankle joint?

Accepted Answer

Talus

Question 13

If a patient cannot flex their wrist, which muscle is most likely paralyzed?

Accepted Answer

Flexor carpi radialis

Question 14

Which muscle group is located on the anterior thigh and is responsible for knee extension?

Accepted Answer

Quadriceps femoris

Question 15

Which bone is found on the lateral side of the forearm and articulates with the carpal bones at the wrist?

Accepted Answer

Radius

Question 16

Which muscle originates from the anterior superior iliac spine and runs diagonally across the thigh to insert on the tibia?

Accepted Answer

Sartorius

Question 17

Which equation best represents the relationship between force, lever arm, and torque in muscle movement at a joint?

Accepted Answer

$	au = F 	imes r$

Question 18

A patient has a fracture at the anatomical neck of the femur. Which structure is most at risk for avascular necrosis?

Accepted Answer

Fovea capitis

Question 19

Which muscle is responsible for dorsiflexion of the foot?

Accepted Answer

Tibialis anterior

Question 20

Which structure is the most medial bone of the wrist (carpus) in anatomical position?

Accepted Answer

Pisiform

Appendicular Skeleton: Bones and Muscles – Lab Practical 3 Study Guide

Study Guide - Practice Questions