What are the gross structure of the kidney?

What are the gross structure of the kidney?

As noted previously, the structure of the kidney is divided into two principle regions—the peripheral rim of cortex and the central medulla. The two kidneys receive about 25 percent of cardiac output. They are protected in the retroperitoneal space by the renal fat pad and overlying ribs and muscle.

What organizing structure of the kidney are present when viewed in gross section?

The functional substance, or parenchyma, of the kidney is divided into two major structures: the outer renal cortex and the inner renal medulla. Grossly, these structures take the shape of eight to 18 cone-shaped renal lobes, each containing renal cortex surrounding a portion of medulla called a renal pyramid.

What structures are found in the renal columns?

The renal columns are connective tissue extensions that radiate downward from the cortex through the medulla to separate the most characteristic features of the medulla, the renal pyramids and renal papillae.

What is the apex of the renal pyramid called?

renal papilla
The base of each pyramid faces the renal cortex, and its apex, called a renal papilla (plural=papillae), points toward the centre of the kidney.

Is renal column medulla or cortex?

The renal column (or Bertin column, or column of Bertin) is a medullary extension of the renal cortex in between the renal pyramids. It allows the cortex to be better anchored. Each column consists of lines of blood vessels and urinary tubes and a fibrous material.

What are gross features in anatomy?

Gross (or macroscopic) anatomy: The study of anatomical features visible to the naked eye, such as internal organs and external features.

How does gross anatomy differ from histology?

Gross anatomy is the study of anatomy at the visible or macroscopic level. The counterpart to gross anatomy is the field of histology, which studies microscopic anatomy. The study of gross anatomy can be performed on deceased organisms using dissection or on living organisms using medical imaging.

What is the anatomy of the kidney in anatomy?

Gross Anatomy of the Kidney. The kidneys lie on either side of the spine in the retroperitoneal space between the parietal peritoneum and the posterior abdominal wall, well protected by muscle, fat, and ribs. They are roughly the size of your fist, and the male kidney is typically a bit larger than the female kidney.

What is the structure of the renal column?

A frontal section through the kidney reveals an outer region called the renal cortex and an inner region called the medulla ( [link] ). The renal columns are connective tissue extensions that radiate downward from the cortex through the medulla to separate the most characteristic features of the medulla, the renal pyramids and renal papillae.

How much does a kidney weigh in grams?

Upper portions of the kidneys are somewhat protected by the eleventh and twelfth ribs. Each kidney weighs about 125–175 g in males and 115–155 g in females.

What is the difference between a renal pyramid and a lobule?

Each renal pyramid, with its surrounding cortical tissue, forms a renal lobe. Renal lobes are further divided into renal lobules. Each lobule consists of a group of nephrons emptying into one collecting duct. These structures can be observed in a coronal section of the kidney.