This is called a hilum.
Hilum
Lymph exits the node at its hilum, the indented region on the concave side, via efferent lymphatic vessels.
The depression located posterior to the knee is known as the popliteal region. It is a shallow hollow or fossa located at the back of the knee joint. This region contains important blood vessels, nerves, and lymph nodes.
The area where the torso meets the thigh is called the groin or inguinal region. It is located between the abdomen and the upper leg and contains important blood vessels, nerves, and muscles.
hilum
The palmar region refers to the palm of the hand. It includes the skin, muscles, tendons, blood vessels, and nerves in this area. The palmar region is important for activities requiring grasping and manipulating objects.
Plexus refers to a network of nerves or blood vessels in the body. The most well-known plexuses are the brachial plexus in the shoulder region and the solar plexus located in the abdomen. These networks play a crucial role in transmitting signals and maintaining proper function in various parts of the body.
no the axillary is part of the appendicular region.
The area between the scrotum and the anus is called the perineum. It is a diamond-shaped region that contains various muscles, nerves, and blood vessels that support the pelvic organs and play a role in sexual function and urination.
The region surrounding the crease in the skin at the junction of the upper leg with the trunk is called the inguinal region. This area is important for lymphatic drainage, blood vessels, and nerves that supply the lower limbs. It is also a common site for hernias to occur due to the natural weakness in the abdominal wall in this area.
The perineum is the area between the scrotum and the anus in males, and between the vulva and the anus in females. It is a diamond-shaped region that contains various muscles, nerves, and blood vessels. The perineum plays a crucial role in supporting the pelvic floor and is important for sexual function and continence.
Air is a mixture of gases.When we inhale we reduce pressure in our lungs and thus air is diffused in our lungs.This diffusion takes place inside the lungs and between the bronchities.Here the air passage is the trachea/wind pipe.