Endocrine system

It is a ductless gland, directly transmitted to capillary or blood vessel

Endocrine gland

Composed of complex protein follicles

Peptides

What are the four peptides hormones

Hypothalamic, pancreatic, pituitary, parathyroid hormone

One type of amino acid is present in molecular

Monoamines

What is the hormone under tyrosine amino acid

Epinephrine and Thyroid hormones

What is the hormone under tryptophan amino acid

melatonin and serotonin

All gonadal hormones except relaxin; adrenal hormones

Steroidal

promotes relaxation of pelvic ligaments during parturition.

Relaxin hormone (peptide type)

Prostaglandin  is a type of?

Lipid

Ventral to thalamus and secretes releasing hormones (RH).

Hypothalamus

Attach to base of hypothalamus; secretes stimulating hormones

Hypophysis / pituitary gland

What are the parts of pituitary gland

pars distal, pars tuberalis, pars nervosa, pars intermedia

Pars distal secretes?

• Secretes growth hormone/ somatotrophine

• ACTH

• FSH

• TSH

• LH

• Prolactin (lactogenesis)

Regulates basal metabolic rate of animal

T4

2 distinct lobes connected to isthmus near thyroid cartilage; secretes T3 and T4

Thyroid gland

Scattered among follicular cells of thyroid

Parafollicular cells of thyroid

Parafollicular cells of thyroid secretes?

calcitonin (lower the calcium)

Small aggregates of endocrine tissue near thyroid gland?

Parathyroid gland

It secretes PTH/ Parathormone

 Pancreas

Scattered throughout this bilobed gland

Pancreas

located close to the kidney and composed of outer adrenal cortex and inner medulla

Adrenal gland

paired ovoid structures in females which secretes estrogen

ovary

which secretes estrogen

graafian follicles

which secretes progesterone

corpus luteum

Paired organs covered and protected by scrotum; secretes testosterone

Testes

Responsible for development of secondary sexual characteristic in animals.

Testosterone