Bloody ass Bio cards Flashcards
Identify the endocrine gland and 2 hormones responsible for the regulation of blood glucose level.
Pancreas: Insulin, Glucagon
Explain briefly how the pancreas (Insulin and glucagon) helps to lower blood glucose level.
Stimulates glucose uptake by cells, promotes glycogen synthesis in liver and muscles, inhibits glucose production in liver, Facilitates glucose storage as glycogen
Explain briefly how the Pancreas (Insulin, Glucagon) helps to raise blood glucose level.
Stimulates glycogen breakdown in liver, promotes glucose release from stored glycogen, Triggers gluconeogenesis (new glucose production), Increases glucose availability in bloodstream
Mdm Lim has osteoporosis. She fell and sustained a hip fracture.
Identify the 2 glands and 2 hormones responsible for the regulation of blood calcium level.
Parathyroid glands: Parathyroid hormone (PTH)
Thyroid gland: Calcitonin
Explain briefly how the Calcitonin helps to lower blood calcium level.
Calcitonin (thyroid hormone) helps lower blood calcium by promoting bone deposition and reducing osteoclast activity
Explain briefly how the Parathyroid hormone (PTH) helps to raise blood calcium level.
Parathyroid hormone (PTH) raises blood calcium by increasing bone resorption and enhancing calcium absorption
Jenny experienced exophthalmos, palpitations and weight loss.
What condition does she most likely have?
Hyperthyroidism
Jenny has hyperthyroidism
Identify the gland and hormones.
Thyroid gland
Hormones: Thyroxine (T4) and Triiodothyronine (T3) and hormones responsible for this condition.
Outline the actions/functions of thyroxine and triiodothyronine.
Regulate metabolism, Control growth and development, Affect heart rate and nervous system activity
Identify the 2 hormones that prepare your body for fight or flight. Name the gland that secretes these hormones.
Epinephrine (Adrenaline) & Norepinephrine (Noradrenaline), Secreted by adrenal medulla
List 3 effects of Epinephrine (Adrenaline) & Norepinephrine (Noradrenaline), on your body.
Increased heart rate and blood pressure, Rapid breathing and increased oxygen supply, Redirected blood flow to muscles
Name the gland that secretes glucocorticoids.
Secreted by adrenal cortex
Describe briefly the actions/functions of glucocorticoids.
Regulate metabolism, Manage stress response, Control inflammation
Outline the roles of prolactin and oxytocin in breastfeeding a baby.
Prolactin: Stimulates milk production, Released during nursing
Oxytocin: Controls milk letdown reflex, Stimulates uterine contractions
Identify 3 hormones secreted by the anterior and posterior lobe of the Pituitary gland each.
Anterior lobe: Growth hormone, Thyroid-stimulating hormone, Adrenocorticotropic hormone
Posterior lobe: Oxytocin, Antidiuretic hormone (vasopressin), Both produced by hypothalamus
Identify the 5 layers of the epidermis.
Stratum corneum, Stratum lucidum, Stratum granulosum, Stratum spinosum, Stratum basale
Name 3 types of cells found in the epidermis and explain their functions.
Keratinocytes: Produce keratin protein, Melanocytes: Produce melanin pigment, Langerhans cells: Immune function
Name 4 structures found in the dermis and explain their functions.
Blood vessels: Temperature regulation and nutrient supply
Hair follicles: Hair growth and protection
Sweat glands: Thermoregulation
Sebaceous glands: Oil production and skin moisturizing
Outline 3 functions of skin.
Protection, Regulation, Sensation
Describe briefly how the skin helps to regulate your body temperature.
Vasoconstriction/vasodilation of blood vessels, Sweating mechanism, Hair erection
Outline 3 functions of the kidneys.
Waste removal, Electrolyte balance, Fluid balance
Identify the tubular & vascular systems of a nephron
Tubular: Bowman’s capsule (glomerular capsule), Proximal convoluted tubule (PCT), Loop of Henle (descending and ascending limbs), Distal convoluted tubule (DCT), Collecting duct
Vascular: Afferent arteriole (supplies blood to glomerulus), Glomerulus (network of fenestrated capillaries), Efferent arteriole (carries filtered blood away), Peritubular capillaries (surround tubules)
Explain briefly the 3 phases of urine formation
Filtration, Selective Reabsorption and Secretion
Identify 3 hormones that control the formation of urine and explain how.
Antidiuretic hormone: Controls water reabsorption in the kidneys
Aldosterone: Regulates electrolyte balance
Renin: Initiates the renin-angiotensin-aldosterone system