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Mekdes Beyene
Anatomy Unit 13
| Question | Answer |
|---|---|
| What is the appendicular skeleton? | The bones of the limbs and girdles that attach them to the axial skeleton. |
| What two major girdles connect the appendicular skeleton to the axial skeleton? | Pectoral and pelvic girdles. |
| What bones form the pectoral girdle? | Clavicle and scapula. |
| What is the clavicle commonly called? | Collarbone. |
| What joint connects the clavicle to the sternum? | Sternoclavicular joint. |
| What joint connects the scapula to the humerus? | Glenohumeral (shoulder) joint |
| What bones make up the wrist? | Carpals. |
| How many carpal bones are there? | 8. |
| What bones form the pelvic girdle? | Two hip bones (coxal bones). |
| What three bones fuse to form each hip bone? | Ilium, ischium, and pubis. |
| What is the socket of the hip bone called? | Acetabulum. |
| What bone bears most of the body’s weight in the leg? | Tibia. |
| What structure connects the two pubic bones? | Pubic symphysis. |
| What is the function of the pelvic girdle? | Supports trunk, protects organs, attaches lower limbs. |
| What type of joint is the shoulder? | Ball-and-socket joint. |
| What type of joint is the elbow? | Hinge joint. |
| Which bone serves as the attachment for most forearm flexors? | Humerus (medial epicondyle). |
| Which bone serves as the attachment for most forearm extensors? | Humerus (lateral epicondyle). |
| What muscle group inserts on the calcaneus? | Gastrocnemius and soleus (via Achilles tendon). |
| What is the function of the appendicular skeleton overall? | Movement and locomotion. |
| Which bones are part of the upper appendicular skeleton? | Pectoral girdle, arm, forearm, wrist, hand. |
| Which bones are part of the lower appendicular skeleton? | Pelvic girdle, thigh, leg, ankle, foot. |
| What connects the axial and appendicular skeletons? | Girdles. |
| What bone would most likely fracture in a fall on an outstretched hand? | Scaphoid. |
| What bone is commonly fractured in contact sports (shoulder)? | Clavicle. |
| What bone injury is known as a “broken hip”? | Fracture of the femoral neck. |
| What bone forms the kneecap? | Patella. |
| What type of bone is the patella? | Sesamoid bone. |
| What joint allows you to rotate your arm? | Shoulder joint. |
| What joint allows you to rotate your forearm? | Radioulnar joint. |
| What joint allows leg extension? | Knee joint. |
| What joint allows you to point your toes? | Ankle joint. |
| What are the main functions of the appendicular skeleton? | Movement, support, and muscle attachment. |
| How many bones are in the appendicular skeleton? | 126 |
| How many bones in each upper limb? | 30 |
| How many bones in each lower limb? | 30 |
| What is the most mobile joint in the appendicular skeleton? | Shoulder joint. |