Match each of the following arteries with its correct description:
_ a. ulnar artery
_ b. axillary artery
_ c. external carotid artery
_ d. brachial artery
_ e. internal carotid artery
_ f. radial artery
_ g. superficial palmar arch
_ h. brachiocephalic artery
_ i. coronary artery
Pre-lab quizzes are also assignable
in
- splits to form the radial artery and the ulnar artery
- is a continuation of the subclavian artery
- supplies the brain
- travels along the medial side of the forearm
- arises from the aortic arch
- gives rise to the digital arteries
- arises from the ascending aorta
- travels along the lateral side of the forearm
- gives rise to the occipital artery
The correct answer and explanation is:
Answers:
a. Ulnar artery – 4. Travels along the medial side of the forearm
b. Axillary artery – 2. Is a continuation of the subclavian artery
c. External carotid artery – 9. Gives rise to the occipital artery
d. Brachial artery – 1. Splits to form the radial artery and the ulnar artery
e. Internal carotid artery – 3. Supplies the brain
f. Radial artery – 8. Travels along the lateral side of the forearm
g. Superficial palmar arch – 6. Gives rise to the digital arteries
h. Brachiocephalic artery – 5. Arises from the aortic arch
i. Coronary artery – 7. Arises from the ascending aorta
Explanation:
The circulatory system is a complex network of arteries that supply oxygenated blood to different body regions. Each artery has a specific role in ensuring proper blood circulation.
The brachial artery (d) is the main artery of the upper arm and bifurcates into the ulnar artery (a), which runs along the medial forearm, and the radial artery (f), which travels along the lateral forearm. These arteries play a crucial role in supplying blood to the forearm and hand. The superficial palmar arch (g), formed primarily by the ulnar artery, gives rise to the digital arteries, which supply blood to the fingers.
The axillary artery (b) is a continuation of the subclavian artery, running through the armpit region and supplying the upper limb. The brachiocephalic artery (h), which arises from the aortic arch, is responsible for giving rise to major branches that supply the head and upper limbs.
The external carotid artery (c) supplies structures outside the brain, including the occipital artery, which nourishes the scalp and muscles at the back of the head. Meanwhile, the internal carotid artery (e) is crucial for brain perfusion, supplying oxygen-rich blood to the brain.
Lastly, the coronary arteries (i) arise directly from the ascending aorta and are essential in delivering blood to the heart muscle itself, ensuring its continuous function.
This intricate network ensures that all body parts receive adequate oxygen and nutrients to function efficiently.
Here is an anatomical diagram highlighting the key arteries as described. Let me know if you need any modifications or further explanations!
