What does the axillary artery flow into?

What does the axillary artery flow into?

In human anatomy, the axillary artery is a large blood vessel that conveys oxygenated blood to the lateral aspect of the thorax, the axilla (armpit) and the upper limb. Its origin is at the lateral margin of the first rib, before which it is called the subclavian artery.

What is the blood supply to the upper limb?

In terms of arterial supply, the upper limb has 5 main vessels, the: subclavian, axillary, brachial, radial, and ulnar arteries. The subclavian, axillary and brachial arteries are continuous with one another, with the brachial artery bifurcating into the radial and ulnar arteries which later converge in the hand.

Where would blood flow next after passing through the axillary artery?

For example, the left subclavian artery becomes the axillary artery as it passes through the body wall and into the axillary region, and then becomes the brachial artery as it flows from the axillary region into the upper arm (or brachium).

What muscle does axillary artery pass beneath?

pectoralis minor muscle
The axillary artery enters the axilla by passing behind the midpoint of the clavicle on the outer edge of the first rib. The axillary artery is divided into three parts by its relation to pectoralis minor muscle: the first part is proximal to pectoralis minor. the second part is posterior to pectoralis minor.

Why is the axillary artery important?

The axillary artery is a large muscular vessel that travels through the axilla. It is responsible for carrying oxygen-rich blood to the upper limb, as well as to parts of the musculocutaneous system of the scapula and upper lateral thorax.

Which is the largest branch of axillary artery?

subscapular trunk
The subscapular trunk is typically the largest branch of the axillary artery. It gives rise to the scapular circumflex artery and the thoracodorsal artery. The scapular circumflex artery runs through the triangular space and provides blood to the scapular region.

Which vein of the upper limb is the most common site for drawing blood?

Median cubital vein
1. Median cubital vein A superficial vein, most commonly used for venipuncture, it lies over the cubital fossa and serves as an anastomosis between the cephalic and basilic veins.

What major artery is under the arm?

Brachial Artery: This artery begins under the pectoralis muscle and travels down the arm. It eventually splits into two arteries (the radial artery and the ulnar artery) at the elbow.

Which site should you avoid for venipuncture?

VENIPUNCTURE SITE SELECTION: Certain areas are to be avoided when choosing a site: Extensive scars from burns and surgery – it is difficult to puncture the scar tissue and obtain a specimen. The upper extremity on the side of a previous mastectomy – test results may be affected because of lymphedema.

Which vein is used for blood collection?

The median cubital and cephalic veins are preferred for blood sampling, but other arm and hand veins may be used. The cephalic vein is located on the lateral (radial) side of the arm, and the basilic vein is located on the medial (ulnar) side.

What to do if you hit an artery during venipuncture?

What to do if you hit an artery:

1. Untie your tourniquet and pull your needle out immediately.
2. Raise the limb above your head to stop the bleeding, if possible.
3. Apply firm pressure to the wound for at least 10 minutes.

What is the most common complication of venipuncture?

Results: Minor bruising and hematoma were fairly common, involving 12.3% of venipunctures, with minor bruising being the most common reaction. Serious complications were observed in 3.4% of patients. Diaphoresis with hypotension occurred in 2.6%. Syncope occurred in less than 1% of patients.

Which sites should you avoid for venipuncture?

Certain areas are to be avoided when choosing a site: Extensive scars from burns and surgery – it is difficult to puncture the scar tissue and obtain a specimen. The upper extremity on the side of a previous mastectomy – test results may be affected because of lymphedema. Hematoma – may cause erroneous test results.

Where is the most common site for venipuncture?

The most common site of venipuncture is the upper arm. The present study macroscopically and anatomically ascertained positional relationships between cutaneous nerves and veins in the cubital (aka antecubital) fossa in many cadaveric dissections to determine the risk of peripheral nerve injury during venipuncture.

The axillary artery ends at the inferior border of the teres major muscle, where it passes into the arm and becomes the brachial artery.

Which artery supplies blood to the upper limb?

The brachial artery (BA) is the most important vessel in the normal vascular anatomy of the upper limb. The classical pattern of the palmar hand region distribution shows the superficial palmar arch.

Where does the axillary artery travel down the arm?

The axillary artery travels deep in the arm pit and gives off several small branches which feed muscles and bones around the shoulder. The axillary artery continues down the arm as the brachial artery. The brachial artery is a blood supply vessel and is a continuation of the axillary artery.

How is the arterial supply to the upper limb delivered?

The arterial supply to the upper limb is delivered via five main vessels (proximal to distal): Subclavian artery; Axillary artery; Brachial artery; Radial artery; Ulnar artery; In this article, we shall look at the anatomy of the arteries of the upper limb – their anatomical course, branches and clinical correlations.

Which is part of the axilla provides oxygenated blood?

The axillary artery is a blood vessel that provides the axilla, the lateral portion of the thorax, and the upper limb with oxygenated blood. It consists of three parts separated by the pectoralis minor, which lies superficially to the artery. The first part is an extension of the subclavian artery.

Where does blood travel in the upper extremity?

It begins near the heart and travels under the clavicle bone toward the shoulder. It gives off several small branches before continuing on as the axillary artery. Blood travels from the heart into the subclavian artery which continues on down the arm as the axillary artery.

Where does the axillary artery carry blood to?

Axillary artery. The axillary artery is a large blood vessel that carries oxygenated blood to various parts of the upper body. These parts of the body include the thorax, upper limb, and axilla (more commonly known as the armpit).

The arterial supply to the upper limb is delivered via five main vessels (proximal to distal): Subclavian artery; Axillary artery; Brachial artery; Radial artery; Ulnar artery; In this article, we shall look at the anatomy of the arteries of the upper limb – their anatomical course, branches and clinical correlations.

How does an axillary artery aneurysm affect the upper limb?

An axillary artery aneurysm is a dilation of the vessel to more than twice its original size. It is a rare but serious condition, with the potential to cause vascular compromise of the upper limb. The dilated portion of the axillary artery can compress the brachial plexus, producing neurological symptoms such as paraesthesia and muscle weakness.

Where does the subclavian artery enter the axilla?

First part – origin of the subclavian artery to the medial border of the anterior scalene. Second part – posterior to the anterior scalene. Third part – lateral border of anterior scalene to the lateral border of the first rib. At the lateral border of the first rib, the subclavian artery enters the axilla – and is renamed the axillary artery.