Control and Coordination Endocrine System

These notes are based on the chapter Control and Coordination class 10 science of NCERT book and CBSE syllabus

Endocrine Gland

The endocrine system is composed of several endocrine glands. A ductless gland is called endocrine gland. Endocrine gland secretes its product directly into the bloodstream.

Hormones are produced in the endocrine glands. Hormone is mainly composed of protein. Hormones assist the nervous system in control and coordination.

Hormonal Control

Nerves do not reach to every nook and corner of the body and hence hormones are needed to affect control and coordination in those parts. Moreover, unlike nervous control, hormonal control is somewhat slower.

Glands and Hormones

Pituitary gland

Also known as the master gland
Situated at the base of brain
Hormones: Growth hormone (GH), thyroid stimulating hormone (TSH), Follicle stimulating hormone (FSH)
Functions: GH stimulates growth, TSH stimulates functioning of thyroid gland, FSH stimulates the follicles during ovulation.

Thyroid Gland

Situated in the Neck
Hormone: Thyroxine
Function: Controls general metabolism and growth in the body.

Adrenal gland

Situated above kidneys
Hormone: Adrenalin
Function: Prepares the body for emergency situations and hence is also called Fight and flight hormone.

Pancreas

Situated near stomach
Hornome: Insulin
Function: Controls blood sugar level

Testis (in Male)

Situated in scrotum
Hormone: Testosterone
Function: Stimulates sperm production, development of secondary sexual characters during puberty.

Ovary (in Female)

Situated near uterus
Hormone: Oestrogen
Function: Egg production, development of secondary sexual characters during puberty.