7/28/2019 Different Types of Cells Found in Human Body
1/15
Submitted by: Retina Shrestha
To: Smriti Gurung
7/28/2019 Different Types of Cells Found in Human Body
2/15
.
Human body is composed of numerous cells ranging
from 50 to 75 trillions and about 210cell types
Cells are oriented into groups to form specializedtissues and finally organs.
Many cell types in human like:
Glandular cells-salivary gland cell
Alimentary canal or digestive system cells-
paneth cellsGoblet cells
Endocrine cells-ovarian endocrine cells
Exocrine cells-acinar cell of pancrease
7/28/2019 Different Types of Cells Found in Human Body
3/15
A cell that is highly specialized for theassembly and packaging of proteins forexport.
These cells take up amino acids from theblood and assemble them into enzymes.
The enzymes manufactured are Amylase,
Trypsin and Lipase.
3
7/28/2019 Different Types of Cells Found in Human Body
4/15
zymogen
Plasma membrane
Central vacuole
Golgi apparatus
Nuclear membrane
nucleolus
mitochondria
Endopalsmicreticulum
7/28/2019 Different Types of Cells Found in Human Body
5/15
Paneth cells are large cells,situated within therecesses of the Intestinal Glands,that possessprominent glycoprotein-containing secretory
granules. The precise function of these cells are not
known.
The large secretory granules found in the apicalcytoplasm of paneth cell contain theantibacterial enzyme lysozyme.
Contribute to the regulation of intestinal flora.
7/28/2019 Different Types of Cells Found in Human Body
6/15
CT, connective tissue of the Lamina Propria; G, Golgi Apparatus; L, Lysosome; M,mitochondrion; N, Nucleus; Nu, Nucleolus; RER, rough Endoplasmic Reticulum;S, secretory granule; arrow, base of Paneth cell
Fig. Paneth cell of small intestine.CT, connective tissue of the Lamina Propria; G, Golgi
Apparatus; L, Lysosome; M, mitochondrion; N, Nucleus; Nu,Nucleolus; RER, rough Endoplasmic Reticulum; S, secretorygranule
7/28/2019 Different Types of Cells Found in Human Body
7/15
The break down of large particles into smallerones is facilitated in the oral cavity by thesecretions from many different salivary glands.
The secretions involve saliva. Salivary secretions are divided into two major
categories : serous and mucous.
Serous secretions are watery , non viscous andproteinaceous.
Mucous secretions are mucoid,viscous, andrich in polysaccharides and mucoproteins.
7/28/2019 Different Types of Cells Found in Human Body
8/15
A : serous cellB : mucus cell
Fig: cross-section of salivary gland
7/28/2019 Different Types of Cells Found in Human Body
9/15
An endocrine cell from the ovary synthesizesand secrets steroid hormones which areconstructed from cholesterol.
The cell,shaped like a long , slender football, isfound in the theca interna of a growing folliclein the ovary,where it secrets a steroid hormonethat is a precursor of the female sex hormone,
estrogen.
7/28/2019 Different Types of Cells Found in Human Body
10/15
7/28/2019 Different Types of Cells Found in Human Body
11/15
mitochondria
Lipid droplets
SER
erythrocytes
Fig: Ovarian cell
7/28/2019 Different Types of Cells Found in Human Body
12/15
7/28/2019 Different Types of Cells Found in Human Body
13/15
Goblet cells are glandular simple columnarepithelial cells whose sole function is to secretemucin, which dissolves in water to formmucus.
The epithelium lining of the intestine and lungscontain many goblet cells.
The primary function is to secrete mucus , aslippery , viscous substance, rich in
mucopolysaccharides , that protects andlubricates the lining of the intestine.
They usually have a broad apex and a narrow
base.
7/28/2019 Different Types of Cells Found in Human Body
14/15
Fig, illustrates the relationship between the differenttypes of cells that line the trachea and bronchioles in thelung. The three cell types shown hre are the elongateciliated epithelial cells, goblet cells and basal cells.
Goblet cell
Ciliary cell
Basal cell
7/28/2019 Different Types of Cells Found in Human Body
15/15
Mucus droplets
Golgi apparatus
Nucleus
RER
Fig: Goblet cells of intestine