What are the contents of the axilla

The main contents of the axilla are the axillary vein and artery, the axillary lymph nodes, with a portion of the brachial plexus and its branches. Brachial plexus – a complex network of nerves formed by the lower cervical and upper thoracic ventral nerve roots, which begins in the neck and extends into the axilla.

What are the four walls of the axilla?

The axilla can be visualized as having a floor, an apex, and four walls (medial, lateral, anterior and posterior). See the figure. The apex is pointing toward the root of the neck. It is formed by the convergence of the clavicle (anterior), the scapula (posterior) and the first rib (medially).

Which nerves are in the axilla?

Brachial Plexus.
Axillary Nerve.
Musculocutaneous Nerve.
Median Nerve.
Radial Nerve.
Ulnar Nerve.

What is contained in the neurovascular bundle of the axilla?

First PartSecond PartThird PartSuperior thoracic arteryThoracoacromial arteryAnterior circumflex humeral artery

What is the function of the axilla?

The body has about 20 to 40 bean-shaped axillary lymph nodes located in the underarm area. These lymph nodes are responsible for draining lymph – a clear or white fluid made up of white blood cells – from the breasts and surrounding areas, including the neck, the upper arms, and the underarm area.

What are the parts of the axillary artery What are the branches of each part what structures do they supply?

It has three branches that are variable in their order: the subscapular trunk, the anterior humeral circumflex artery, and the posterior humeral circumflex artery. The subscapular trunk is typically the largest branch of the axillary artery. It gives rise to the scapular circumflex artery and the thoracodorsal artery.

What is the base of the axilla?

The floor, or base, of the axilla is the axillary fascia and its skin on the surface of the axilla, aka the ‘armpit’. The axilla is filled with adipose (fat) and allows passage for: vessels, nerve plexus, lymphatics, and muscles. The muscles include the coracobrachialis, pectoralis minor, and the biceps brachii.

What nerve Innervates the floor of the axilla?

The floor of the axilla is tough axillary fascia that connects the thoracic wall, the gleno-humeral joint, and the posterior part of the axilla. The skin of the axilla is supplied by the intercostobrachial nerve.

What is the difference between axillary and axilla?

AxillaAxillaDetailsArteryaxillary arteryVeinaxillary vein

Where is axilla found?

The axilla is a small anatomical space located between the upper thoracic wall and the arm. The main contents include the brachial plexus, axillary artery and vein, and axillary lymph nodes. [1] Lymph nodes contain a range of immune cells, including lymphocytes and macrophages.

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What are axillary hairs?

Armpit hair, also referred to as axillary hair, gets its start from puberty. … The apocrine sweat gland is associated with hair follicles in the pubic and axillary area.

What is the medical term for axilla?

Definition of axilla : the cavity beneath the junction of a forelimb and the body especially : armpit.

What does axilla mean in medical terms?

(AK-sih-LAYR-ee) Pertaining to the armpit area, including the lymph nodes that are located there.

Where is brachial located?

The brachial artery is a major blood vessel located in the upper arm and is the main supplier of blood to the arm and hand. The brachial artery continues from the axillary artery at the shoulder and travels down the underside of the arm.

What are the 6 branches of the axillary artery?

S: superior thoracic artery.
T: thoracoacromial artery.
L: lateral thoracic artery.
S: subscapular artery.
A: anterior humeral circumflex artery.
P: posterior humeral circumflex artery.

What is axillary sheath?

The axillary sheath is a fibrous sheath that encloses the axillary artery and the three cords of the brachial plexus to form the neurovascular bundle. It is surrounded by the axillary fat. It is an extension of the prevertebral fascia of the deep cervical fascia.

What are tributaries of the axillary vein What structures do they drain?

Tributaries. The second and third parts of the axillary vein have tributaries that correspond with the branches of the axillary artery. These include the thoracoacromial vein, lateral thoracic vein, subscapular vein, anterior circumflex humeral vein and posterior circumflex humeral vein.

Why is it called an armpit?

armpit (n.) mid-14c., “hollow place under the shoulder,” from arm (n. 1) + pit (n. … Another Middle English word was asselle (early 15c.), from Old French asselle, from Latin axilla. Colloquial armpit of the nation for any locale regarded as ugly and disgusting was in use by 1965.

What is the leg armpit called?

Popliteal fossa of the right leg.

What is brachial anatomy?

The brachial plexus is a network (plexus) of nerves (formed by the anterior rami of the lower four cervical nerves and first thoracic nerve (C5, C6, C7, C8, and T1). This plexus extends from the spinal cord, through the cervicoaxillary canal in the neck, over the first rib, and into the armpit.

What does the Musculocutaneous nerve innervate?

The musculocutaneous nerve innervates the three muscles of the anterior compartment of the arm: the coracobrachialis, biceps brachii, and brachialis. It is also responsible for cutaneous innervation of the lateral forearm.

What Innervates radial nerve?

Along its course in the arm region, the radial nerve provides muscular branches that innervate the triceps brachii, anconeus, and brachioradialis muscles.

What are the main functions of the lymphatic system?

managing the fluid levels in the body.
reacting to bacteria.
dealing with cancer cells.
dealing with cell products that otherwise would result in disease or disorders.
absorbing some of the fats in our diet from the intestine.

What is a left axilla?

The axillary lymph nodes, also known commonly as axillary nodes, are a group of lymph nodes in the axilla and receive lymph from vessels that drain the arm, the walls of the thorax, the breast and the upper walls of the abdomen.

Where is thoracic duct?

Below the fifth thoracic vertebra, the thoracic duct is commonly a dual or plexiform duct but it becomes a single 2 to 3 mm duct above that level. The thoracic duct continues cephalad adjacent the esophagus passing posterior to the aortic arch and left subclavian artery.

Should I shave my armpits girl?

For those that like the feel of smooth, hairless arms, shaving will be beneficial. Because hair holds onto moisture, shaving your armpits may result in less sweating, or at least less noticeable sweating (sweat rings on your shirt sleeves, for example). Shaving may also cut down on the odor associated with sweat.

Why do we have pubic hair?

Pubic hair acts like a protective buffer, reducing friction during sex and other activities. Some sources even refer to pubic hair as a “dry lubricant.” That’s because it’s easier to rub hair against hair than it is to rub skin against skin.

What is the meaning of pubic hair?

1 : the hair that appears on the lower part of the hypogastric region at puberty. — called also pubic hair. 2 : the lower part of the hypogastric region : the pubic region. pubes.