mammary gland

Examples of mammary gland in the following topics:

• Mammary Glands

  • A mammary gland is an organ in female mammals that produces milk to feed young offspring.
  • All the milk-secreting tissue leading to a single lactiferous duct is called a simple mammary gland; a complex mammary gland is all the simple mammary glands serving one nipple.
  • Humans normally have two complex mammary glands, one in each breast, and each complex mammary gland consists of 10–20 simple glands.
  • Mammary glands develop during different growth cycles.
  • Cross-section of the mammary-gland. 1.

• Physiology of Lactation

  • Lactation is the secretion of milk from specialized glands (mammary glands) to provide nourishment to offspring.
  • Lactation describes the secretion of milk from the mammary glands and the period of time that a mother lactates to feed her young.

• Development of the Integumentary System

  • The integument also includes appendages, primarily the sweat and sebaceous glands, hair, nails and arrectores pillorum (tiny muscles at the root of each hair that cause goose bumps).
  • Other regions of the ectoderm form into epithelial columns called cords which will become hair follocles and sebaceous and sweat glands.
  • At 20 weeks gestation, hair begins to grow from sebaceous glands, while sweat glands are formed from coiled cords.
  • Other cords begin to form mammary glands.

• Glandular Epithelia

  • There are two major classifications of glands: endocrine glands and exocrine glands.
  • Examples of exocrine glands include the sweat glands, salivary glands, mammary glands, the pancreas, and the liver.
  • An endocrine gland is its counterpart.
  • Examples of endocrine glands include the adrenal glands, located atop the kidneys and responsible for the secretion of certain hormones such as adrenaline, cortisol, and others.
  • The sebaceous glands are microscopic glands in the skin that secrete an oily/waxy matter, called sebum, to lubricate and waterproof the skin and hair of mammals.

• Breast Augmentation and Reduction

• Placenta

  • Human placental lactogen is lactogenic and promotes mammary gland growth in preparation for lactation in the mother.
  • It contributes to the woman's mammary gland development in preparation for lactation and stimulates uterine growth to accommodate the growing fetus.

• The Anterior Pituitary

  • Its regulatory functions are achieved through the secretion of various peptide hormones that act on target organs including the adrenal gland, liver, bone, thyroid gland, and gonads.
  • Adrenocorticotropic hormone (ACTH), is a polypeptide whose target is the adrenal gland.
  • Thyroid-stimulating hormone is a glycoprotein hormone that affects the thyroid gland and the secretion of thyroid hormones.
  • Prolactin is a polypeptide hormone whose target is the ovaries and mammary glands.
  • Hormone secretion from the anterior pituitary gland is regulated by hormones secreted by the hypothalamus.

• Ovaries

  • Ovaries in females are analogous to testes in males in that both are gonads and endocrine glands.
  • When oocyte maturation is completed, a luteinizing hormone (LH) surge secreted by the pituitary gland stimulates follicle rupture and oocyte release.
  • Progesterone prepares the uterus for pregnancy and the mammary glands for lactation.

• Overview of the Male and Female Reproductive Systems

  • One important type of parental care is the use of the mammary glands in the female breasts to nurse the baby.
  • The second category, the ejaculatory fluid-producing glands, includes the seminal vesicles, prostate, and vas deferens.
  • The final category, used for copulation and deposition of the spermatozoa (sperm) within the female, includes the penis, urethra, vas deferens, and Cowper's gland.
  • One of the most significant features of the human penis is the coronal ridge underneath the gland around the circumference of the shaft.
  • During intercourse, this area is lubricated by mucus secreted by the Bartholin's glands.

• Overview of the Adrenal Glands

  • In mammals, the adrenal glands (also known as the suprarenal glands) are endocrine glands that sit atop the kidneys.
  • In mammals, the adrenal glands (also known as the suprarenal glands) are endocrine glands that sit atop the kidneys.
  • In humans, the right adrenal gland is triangular shaped, while the left adrenal gland is semilunar shaped.
  • Each adrenal gland has two distinct structures, the outer adrenal cortex and the inner medulla—both produce hormones.
  • The adrenal glands are triangular-shaped organs on top of the kidneys.