It is possible that HS develops when the personâs immune system overreacts. HS begins in the hair follicles (where hair grows out of the skin). Like everyday acne, HS forms when the hair follicles clog with bacteria and other substances.
Capitulum is a kind of inflorescence found mostly in the family Asteraceae . It is characterized by the presence of two types of florets: ray florets and disc florets. It looâ¦ks like a single large flower but is actually an inflorescence. Example: Sunflower.
The sarcoplasmic reticulum is the endoplasmic reticulum of the muscle cell. There are sac-like regions of the sarcoplasmic reticulum known as terminal cisternae. The terminal cisternae act as calcium storage sites. The calcium ions stored in the terminal cisternae are essential in muscle contraction.