endocrine system

• endocrine system

  • or endocrine gland system
  • mediates chemical coordination of body functions
  • composed of ductless glands that release hormones
  • hormones are chemical messengers that affect targets of tissue or organ
• endocrine system

  • or endocrine gland system
  • mediates chemical coordination of body functions
  • composed of ductless glands that release hormones
  • hormones are chemical messengers that affect targets of tissue or organ
• feedback mechanism

  • endocrine and nervous sytems coordinate with eahc other thru a series of feedback mechanism
  • or a signal that initiate (accelerate) or inhibit (slowdown) a process
• feedback mechanism

  • endocrine and nervous sytems coordinate with eahc other thru a series of feedback mechanism
  • or a signal that initiate (accelerate) or inhibit (slowdown) a process
• endocrine glands

  • produces most hormones
  • tissues or organs with endocrine function are adipose tissue, thymus, stomach, small intestine, kidneys, heart
• endocrine glands

  • produces most hormones
  • tissues or organs with endocrine function are adipose tissue, thymus, stomach, small intestine, kidneys, heart
• hypothalamus

  • part of the brain which is responsible for producing hormones that help control cells and organs
  • hormones govern physiologic functions such as temp regulation, thirst, hunger, sleep, mood, sex drive, release of other hormones
• hypothalamus

  • part of the brain which is responsible for producing hormones that help control cells and organs
  • hormones govern physiologic functions such as temp regulation, thirst, hunger, sleep, mood, sex drive, release of other hormones
• pituitary gland

  • or master gland
• pituitary gland

  • or master gland
• tropism

  • biological mechanism
  • how plants respond to external stimuli
  • enables plant to move toward (positive) or against (negative) the source of a stimulus
• tropism

  • biological mechanism
  • how plants respond to external stimuli
  • enables plant to move toward (positive) or against (negative) the source of a stimulus
• plant response

  • all living things respond to environmental stimuli to respond
  • plants are sessile (stationary) exhibit responses to stimuli such as light, water, touch, wind
  • responses are important to get nutrients, survive condition, defend itself from predators, to repoduce
  • plants release chemicals that act as defense mechanism against pathogen and predators, warn nearby plants to prepare for an attack
• plant response

  • all living things respond to environmental stimuli to respond
  • plants are sessile (stationary) exhibit responses to stimuli such as light, water, touch, wind
  • responses are important to get nutrients, survive condition, defend itself from predators, to repoduce
  • plants release chemicals that act as defense mechanism against pathogen and predators, warn nearby plants to prepare for an attack
• examples of plant response

  1. mimosa pudica or makahiya is a sensitive plant that closes its leaflets when touched
  2. sunflower moves toward the direction of the sun
  3. stomata close in response to rapid water loss
  4. seeds of some plants need to be burned to trigger germination
  5. roots grow underground because they move to water sources and center of gravity
  6. leaves grow above ground where they absorb light
• examples of plant response

  1. mimosa pudica or makahiya is a sensitive plant that closes its leaflets when touched
  2. sunflower moves toward the direction of the sun
  3. stomata close in response to rapid water loss
  4. seeds of some plants need to be burned to trigger germination
  5. roots grow underground because they move to water sources and center of gravity
  6. leaves grow above ground where they absorb light
• plant growth pattern

  • tropism are movements caused by a change in a plants growth patttern

  1. geotropism gravidy causes a response in a plants growth
  2. hydrotropism the way a plant grows or bends in response to water
  3. thigmotropism plants bend or grow because of touch like vine around a fram
  4. phototropism the way a plant grows or bends in response to light
• plant growth pattern

  • tropism are movements caused by a change in a plants growth patttern

  1. geotropism gravidy causes a response in a plants growth
  2. hydrotropism the way a plant grows or bends in response to water
  3. thigmotropism plants bend or grow because of touch like vine around a fram
  4. phototropism the way a plant grows or bends in response to light
• Pituitary hormones

  1. follicle stimulating hormone
  2. leuteinizing hormone
  3. oxytocine
• Pituitary hormones

  1. follicle stimulating hormone
  2. leuteinizing hormone
  3. oxytocine
• follicle stimulating hromone

  • or fsh
  • stimulates egg maturation in ovary and release of sex hormones
• follicle stimulating hromone

  • or fsh
  • stimulates egg maturation in ovary and release of sex hormones
• luteinizing hormone

  • stimulates egg maturation and corpus luteum surrounding the egg
  • affects female sex hormones and menstrual cycle
• luteinizing hormone

  • stimulates egg maturation and corpus luteum surrounding the egg
  • affects female sex hormones and menstrual cycle
• oxytocin

  • affects childbirth, lactation, some behaviors
• oxytocin

  • affects childbirth, lactation, some behaviors
• endocrine hormones

  1. estrogen
  2. progesterone
  3. oxytocin
• endocrine hormones

  1. estrogen
  2. progesterone
  3. oxytocin
• estrogen

  • produced by ovaries
  • stimulates egg maturation and controls secondary sex characteristics
• estrogen

  • produced by ovaries
  • stimulates egg maturation and controls secondary sex characteristics
• progesterone

  • produced by ovaries
  • prepares uterus to receive a fertilized egg
• progesterone

  • produced by ovaries
  • prepares uterus to receive a fertilized egg
• oxytocin

  • produced by hypothalamus
  • slows down labor and milk release from mammary glands in females
• oxytocin

  • produced by hypothalamus
  • slows down labor and milk release from mammary glands in females