Endocrine - cells ii Thyroid hormone(Thyroxine or T-4...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
1Endocrine hormones slow longer lasting effects, ongoing processes Nervous nerve impulses - neurotransmitters fast immediate effects 1. Hormone - chemical messenger produced by cells, released into blood, affect only target organs a. Direct - lipid based (steroid based), pass directly through target cell’s membrane b. Indirect - protein based, need intermediate receptor to get into membrane 2. Endocrine glands - ductless, go directly into the blood 3. Endocrine system - major control system a. Pituitary gland “Master Gland” i. Anterior (1) Growth hormone (GH) (2) Prolactin - milk production (3) *FSH - eggs and sperm (4) *LH - ovulation in females, testosterone in males (5) *TSH - Thyroid stimulating hormone (6) *ACTH - stimulates adrenal gland cortex (7) Ultimate control is by hypothalamus —> produces releasing and inhibiting hormones ii. Posterior - releases hormones (1) Oxytocin - uterine contractions, milk let down (2) ADH - decreased urine production b. Thyroid gland i. Calcitonin - decreases Calcium levels in blood - made by parafollicular
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: cells ii. Thyroid hormone (Thyroxine or T-4) - follicle cells - major metabolic hormone c. Parathyroid gland i. PTH - increases Calcium in blood d. Adrenal gland - sits on top of the kidney i. Cortex (1) Mineralocorticoids - aldosterone (water balance) (2) Glucocortoids - cortisone (increase blood glucose, decrease edema) (3) Sex hormones - androgens ii. Medulla - inside portion - behaves more like nervous tissue (1) Catecholamines - epinephrine, NE - controlled by hypothalamus e. Thymus gland i. Thymosin (immunity) - shrinks in adulthood f. Pancreas i. Insulin - Beta cells, regulates blood glucose —> decreases glucose, deficiency = diabetes ii. Glucagon - Alpha cells, increase blood glucose, target organ is liver g. Pineal gland - melatonin, determine day/night h. Gonads i. Ovaries (1) Estrogen, progesterone ii. Testes (1) Testosterone...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern