The figure shows different human tissues labeled as A to D. Which option gives the correct identification of the label, its location and one feature?
(1) D-Unicellular glandular epithelium, goblet cells, secrete saliva
(b) B-Sqamous epithelium, walls of blood vessels, form a diffusion boundary
(3) A-Cuboidal epithelium, ducts of glands, secretion and absorption
(4) C-Columnar epithelium, lining of stomach, secretion and absorption
Haversian canal in the bone of mammals is connected by a small blood vessel canal called
a. Schlemm's canal
b. Volkmann's canal
c. Portal capillaries
d. Sinuses
Which of the following serve as the anchoring junctions between the cells?
(1) Tight junctions
(2) Gap junctions
(3) Desmosomes
(4) Nexuses
All the following statements regarding epithelial tissues are correct except
(1) the cells are completely packed with little intercellular matrix
(2) they do not have a vascular supply of their own
(3) cell junctions are very well developed in epithelial cells
(4) they rest on a cellular basement membrane
From which of the embryological germ layers is the epithelial tissue derived
(I) ectoderm
(II) mesoderm
(III) endoderm
(1) I & II are correct
(2) I & III are correct
(3) II & III are correct
(4) I & II & III are correct
Pseudostratified columnar epithelium with stereocilia are located in
(1) Trachea
(2) Vas Deferens
(3) Epididymis
(4) Endometrium
In which of the following types of gland, secretions are formed by the breakdown of entire cells
(1) Endocrine
(2) Holocrine
(3) Merocrine
(4) Autocrine
Cancers are often classified based on the type of tissue in which they develop. A cancer developing in the epithelial tissue will be classified as
(1) Adenoma
(2) Blastoma
(3) Carcinoma
(4) Sarcoma
What type of epithelium is the Urothelium?
(1) simple squamous
(2) stratified squamous keratinized
(3) pseudo-stratified non ciliated
(4) transitional
An important function of the epithelium is secretion. Which cell organelle would be most important in such secretory epithelial cells
(1) Mitochondria
(2) endoplasmic reticulum
(3) Golgi apparatus
(4) Lysosomes