Olecranal refers to the:
- a) Back bone
- b) Heel
- c) Elbow
- d) Back of knee
- e) Calf of leg
The correct answer is c) Elbow.
The olecranon is the large, curved bony eminence of the ulna, a long bone in the forearm that projects behind the elbow. It forms the most pointed portion of the elbow and is opposite to the cubital fossa or elbow pit. The olecranon is important for elbow function, as it allows the triceps muscle to extend the forearm.
The other answer choices are incorrect:
- a) Back bone:
The back bone is also known as the spine or vertebral column. It is made up of 33 bones that protect the spinal cord and provide support for the body.
- b) Heel:
The heel is the back part of the foot. It is made up of several bones, including the calcaneus, talus, and navicular bones. The heel provides support for the foot and helps to absorb shock during walking and running.
- d) Back of knee:
The back of the knee is also known as the popliteal fossa. It is a depression behind the knee joint that contains the popliteal artery, popliteal vein, and popliteal lymph nodes.
- e) Calf of leg:
The calf of the leg is the fleshy part of the back of the lower leg. It is made up of two muscles, the gastrocnemius and soleus muscles. The calf muscles are responsible for plantar flexion of the foot, which is pointing the toes down.
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