What is the difference between serous and mucous glands?

The main difference between serous and mucous is that serous gland secretes a thin, watery secretion containing zymogens, antibodies, and inorganic ions, which are mainly involved in digestion and defense whereas mucous gland secretes a thick, viscous secretion, containing mucin, which is mainly involved in lubrication …

What is difference between serous and mucous acini?

Mucous acini are composed of larger cells, whereas serous acini are composed of smaller cells. Serous acini have narrow lumen while mucous acini have wider lumen. Nucleus of serous cell is spherical and is placed in the basal third of the cell, whereas that of mucous cell is flattened and is placed near the base.

What is serous gland?

Serous glands secrete serous fluid. They contain serous acini, a grouping of serous cells that secrete serous fluid, isotonic with blood plasma, that contains enzymes such as alpha-amylase.

What is mucous gland?

Mucous gland, also known as muciparous glands, are found in several different parts of the body, and they typically stain lighter than serous glands during standard histological preparation. Most are multicellular, but goblet cells are single-celled glands.

Where are mucous glands?

The sublingual glands are mostly mucous. Numerous minor salivary glands, both serous and mucous, are found throughout the oral mucosa, in lips, cheeks, palate, and tongue. The terms mucosal and submucosal refer to location within the wall of the digestive tract (i.e., in the mucosa or in the submucosa, respectively.)

Are sweat glands serous or mucous?


Serous glands secrete a watery, often protein-rich, fluid-like product, e.g. sweat glands. Mucous glands secrete a viscous product, rich in carbohydrates (such as glycoproteins), e.g. goblet cells.

Which glands have serous Demilunes?

Serous demilunes are the serous cells at the distal end of mucous tubuloalveolar secretory unit of certain salivary glands. These demilune cells secrete the proteins that contain the enzyme lysozyme, which degrades the cell walls of bacteria. In this way, lysozyme confers antimicrobial activity to mucus.

Is mucus a serous fluid?

Mucus is a thick, clear, and somewhat slimy substance. Serous secretion is a more liquid opalescent fluid composed of water and proteins, such as the digestive enzyme amylase.

Do serous cells secrete mucus?

Two basic types of acinar epithelial cells exist: serous cells, which secrete a watery fluid, essentially devoid of mucus. mucous cells, which produce a very mucus-rich secretion.

Which is mucous salivary gland?

The sublingual gland is purely mucous, and its epithelial cells are all mucus-secreting. The submandibular gland is a mixed gland that can secrete both a serous and mucous form of saliva.

What is the difference between mucus and mucosa?

As nouns the difference between mucosa and mucus

is that mucosa is (anatomy) a mucous membrane while mucus is (physiology) a slippery secretion from the lining of the mucous membranes.

Is submandibular gland serous or mucous?

The submandibular gland produces both serous and mucous saliva (in a 3:2 ratio). It is found in the floor of the mouth and in the suprahyoid region of the neck. A large part of the gland is visible just beneath the inferior border of the mandible.

What are the 3 types of glands?

Endocrine and exocrine glands serve very different purposes in the body.
Exocrine glands

  • salivary.
  • sweat.
  • mammary.
  • sebaceous.
  • lacrimal.

What are the 4 types of glands?

Associated Glands: There are four types of exocrine glands within human skin—sudoriferous, sebaceous, ceruminous, and mammary glands.

What is a hypothalamus gland?

What Is the Hypothalamus? The hypothalamus is a gland in your brain that controls your hormone system. It releases hormones to another part of your brain called the pituitary gland, which sends hormones out to your different organs.

What are glands Class 7?

What is a gland? A gland is an organ which produces and releases substances that perform a specific function in the body. There are two types of gland. Endocrine glands are ductless glands and release the substances that they make (hormones) directly into the bloodstream.

What are glands Class 8?

A gland is a structure which secretes a specific substance in the body. A gland is made up of a group of cells or tissues. A gland which secretes its product into a duct or tube is called exocrine gland.

Which gland has no duct?

The endocrine glands do not have ducts to carry their product to a surface. They are called ductless glands.

Is pancreas a gland?

The pancreas is an organ and a gland. Glands are organs that produce and release substances in the body. The pancreas performs two main functions: Exocrine function: Produces substances (enzymes) that help with digestion.

Where is insulin made?

Insulin is a hormone produced in the pancreas by special cells, called beta cells. The pancreas is below and behind the stomach. Insulin is needed to move blood sugar (glucose) into cells.

Is testes an endocrine gland?

In addition to their role in the male reproductive system, the testes also have the distinction of being an endocrine gland because they secrete testosterone—a hormone that is vital to the normal development of male physical characteristics.

Is pancreas on left side?

The head of the pancreas is on the right side of the abdomen and is connected to the duodenum (the first section of the small intestine) through a small tube called the pancreatic duct. The narrow end of the pancreas, called the tail, extends to the left side of the body.

What are the warning signs of pancreatitis?

Acute pancreatitis signs and symptoms include:

  • Upper abdominal pain.
  • Abdominal pain that radiates to your back.
  • Tenderness when touching the abdomen.
  • Fever.
  • Rapid pulse.
  • Nausea.
  • Vomiting.

What are the symptoms of your pancreas not working properly?

Symptoms of chronic pancreatitis

Constant pain in your upper belly that radiates to your back. This pain may be disabling. Diarrhea and weight loss because your pancreas isn’t releasing enough enzymes to break down food. Upset stomach and vomiting.

What does pancreatic pain feel like?

The most common symptom of both acute and chronic pancreatitis is pain in the upper abdominal area, usually under the ribs. This pain: May be mild at first and get worse after eating or drinking. May become constant, severe, and last for several days.

What part of back hurts with pancreatitis?

A common symptom of pancreatic cancer is a dull pain in the upper abdomen (belly) and/or middle or upper back that comes and goes. This is probably caused by a tumor that has formed in the body or tail of the pancreas because it can press on the spine.

What organ is under left rib?

Your spleen is an organ that sits just below your left rib cage. Many conditions — including infections, liver disease and some cancers — can cause an enlarged spleen.