Homeostasis
- Created by: Sophieparkinson19
- Created on: 03-01-21 13:50
View mindmap
- Homeostasis
- The regulation of the state of cells and of the body'
- Normally about maintaining something at a particular desired level or set point
- Involves the nervous system and the endocrine system
- Exocrine
- Release products (enzymes) into ducts
- Examples include swear, tears and digestive juices
- Endocrine
- Release directly into the bloodstream with no ducts
- Examples are the various hormones
- Coordinates the body (with the nervous system)
- Various endocrine glands and endocrine cells
- Synthesize and release hormone
- Hormones act at very low concentrations, influencing the secreting cell itself, adjacent cells or remote cells
- Hormones require receptors
- Hormone Classes
- Peptides (shorter chains of amino acids)
- Proteins (longer chains of amino acids)
- Steroids
- Amines
- Peptide/ Protein Hormones
- Large and usually globular
- Water-soluble
- Transported by vesicles (e.g. endo/ exocytosis)
- Oxytocin
- ADH (Vasopressin)
- GH (Somatotropin)
- Prolactin
- Endorphins
- Calcitonin
- Insulin
- Glucagon
- Steroid Hormones
- Converted from cholesterol and lipid-soluble
- Must be transported in the blood bound to carrier proteins
- Glucocorticoid,Mineralocoricoids,Androgens,Oestrogens,Progesterones.
- Amine Hormones
- Hormones derived from the modification of amino acids, with carboxyl group removed and amien group remaining
- Enpinephrine (Adrenaline)
- Norepinephrine (noradrenaline)
- Dopamine
- Melatonin
- Water or lipid-soluble
- Hyperthyroidism
- Hyperactivity
- Mood Swings- Anxiety, Irritability, Nervousness
- Insomnia/ Fatigue
- Muscle Weakness
- Excess fat in stools
- Sensitivity to heat and excess sweating
- Unexplained or explained weight loss
- Very infrequent or light periods or periods stopping altogether
- Infertility
- Loss of libido
- Hypothyroidism
- Tiredness
- Being sensitive to cold
- Weight gain
- Constipation
- Depression
- Slow movements and thoughts
- Muscle aches and weakness
- Muscle cramps
- Dry and scaly skin
- Brittle hair and nails
- Loss of libido
- Pain, numbness and a tingling sensation in the hands and fingers
- Irregular or heavy periods
Comments
No comments have yet been made