Histology practical Semester 2 Flashcards
epithelium surrounding the thyroid follicle
simple cuboidal
single layer of cells
nucleus is basophilic and round
what is stored in the thyroid follicle and the function
filled with colloid
consists of thyroglobulin
inactive glycoprotein compound for storage of thyroid hormones
which cells in the thyroid gland secrete calcitonin and function of calcitonin
parafollicular or C cells
inhibits osteoclastic activity by transferring calcium from blood to bone when there is an increase in serum calcium levels
what is in the image ad describe the staining
thyroid gland
colloid is composed of protein and eosin stains proteins pink
nucleus stains purple with hematoxylin as it is basophilic
what is in the image and which direction has the section been cut
skeletal/ striated muscle
transversely
describe the nuclei in skeletal muscle
peripherally located
multiple nuclei
key identification features of skeletal muscle
striations
peripherally located multi nuclei
unbranched
functions of skeletal muscle
movement
maintains body posture
stabilises joints
what is in the image and label the plane it has been taken from
smooth
2 key characteristics of smooth muscle
no striations
spindle/fusiform shaped cell with tapered ends
centrally located single nucleus
what does smooth muscle not have that other muscle types have
no striations
cell types found in compact bone
osteoblasts
osteocytes
osteoclasts
which space the osteon do mature bone cells occupy
lacunae
how do mature bone cells communicate
canaliculi
label the image of the bone
what is in the image
white adipocyte tissue
what structure separates the adipocytes
connective tissue septa
characteristics of adipose tissue
single, large lipid droplet lost during tissue processing
crescent shaped nucleus that is flattened to the periphery
where would you find white adipose tissue, any functions
dermis and hypodermis of the skin
surrounding organs
acts as an energy storage
what is the secretory unit of the exocrine pancreas, which duct secretes the contents and what is the function of secretion
pancreatic acinus
digestive enzymes released into the pancreatic duct
eventually open and empty into the 2nd part of the duodenum via the hepatopancreatic ampulla
endocrine portion of the pancreas and the different cell types present, why does the endocrine part stain lighter
islets of langerhans
alpha beta and delta cels
lighter as it has less rough endoplasmic reticulum
what is in the image
pancreas
cells in hyaline cartilage
chondrocytes
what is the layer of the outer surface of cartilage
perichondrium
