What are borders in anatomy?

What are borders in anatomy?

[bor´der] a bounding line, edge, or surface. brush border a specialization of the free surface of a cell, consisting of minute cylindrical processes (microvilli) that greatly increase the surface area. Brush border, characterized by closely packed microvilli.

What are the borders of the heart?

There are four main borders of the heart:

• Right border – Right atrium.
• Inferior border – Left ventricle and right ventricle.
• Left border – Left ventricle (and some of the left atrium)
• Superior border – Right and left atrium and the great vessels.

What is the difference between surface and border in anatomy?

is that border is the outer edge of something while surface is the overside or up-side of a flat object such as a table, or of a liquid.

What is lateral border in anatomy?

The lateral border (axillary border) is the thickest of the three borders of the scapula. It begins above at the lower margin of the glenoid cavity, and inclines obliquely downward and backward to the inferior angle.

What does a border mean in hospital?

border. [bor´der] a bounding line, edge, or surface. brush border a specialization of the free surface of a cell, consisting of minute cylindrical processes (microvilli) that greatly increase the surface area.

What is anterior of the heart?

The anterior of the heart is formed mainly by the right atrium and ventricle, due to the twisting of the heart during development, which causes the left atrium and ventricle to lie posteriorly.

What are the anatomical relations of the heart?

The heart is made up of four chambers: two upper chambers known as the left atrium and right atrium and two lower chambers called the left and right ventricles. It is also made up of four valves: the tricuspid, pulmonary, mitral and aortic valves.

What lies in the atrioventricular groove?

The atrioventricular groove contains the coronary sinus, which is the largest vein of the heart and lies posteriorly opening into the right atrium. The interatrial groove is covered anteriorly by the ascending aorta and the main pulmonary artery.

What are the anatomical landmarks of the body?

Body Landmarks

• Abdominal – anterior body trunk inferior to ribs.
• Acromial – point of shoulder.
• Antecubital – anterior surface of elbow.
• Axillary – armpit.
• Brachial – arm.
• Buccal – cheek area.
• Carpal – wrist.
• Cervical – neck region.

What is the anterior part of the heart?

It is formed by the left ventricle. The base of the heart, the posterior part, is formed by both atria, but mainly the left. The anterior of the heart is formed mainly by the right atrium and ventricle, due to the twisting of the heart during development, which causes the left atrium and ventricle to lie posteriorly.

What is a medial border?

Description. The medial border (vertebral border) is the longest of the three, and extends from the medial to the inferior angle. It is arched, intermediate in thickness between the superior and the axillary borders, and the portion of it above the spine forms an obtuse angle with the part below.

What is the function of lateral border?

Borders and angles The lateral border is often called the axillary border as it runs superolaterally towards the apex of the axilla. It is the thickest and strongest of the three borders for muscle attachment.

What are the different types of borders in the body?

Borders. 1 Ulnar (medial) border: Tendon of the extensor pollicis longus. 2 Radial (lateral) border: Tendons of the extensor pollicis brevis and abductor pollicis longus. 3 Proximal border: Styloid process of the radius. 4 Floor: Carpal bones; scaphoid and trapezium. 5 Roof: Skin.

What are the anatomical borders of the perineum?

The anatomical borders of the perineum are: Anterior – pubic symphysis. Posterior – tip of the coccyx. Laterally – inferior pubic rami and inferior ischial rami, and the sacrotuberous ligament. Roof – pelvic floor. Base – skin and fascia.

What are the 5 borders of the axilla?

There are five anatomic borders of the axilla: the superior, anterior, posterior, lateral, and medial walls[1]. The medial wall is the serratus anterior and the first four ribs. The humerus, the coracobrachialis, and the short head of the biceps form the lateral wall.

What are the 4 borders of the heart?

There are four main borders of the heart: 1 Right border – Right atrium 2 Inferior border – Left ventricle and right ventricle 3 Left border – Left ventricle (and some of the left atrium) 4 Superior border – Right and left atrium and the great vessels More