science 10 (3rd quarter)

• Homeostasis


  The ability to maintain stable internal state
• Hormones


  Chemical messengers that make changes in our body as we grow old
• Hormones


  They serve as receptors for us to maintain balance
• Penis


  Deposits the sperm into the vagina during mating
• Scrotum


  Contains and protects the testes. It acts as the climate control system for the testes
• Testes


  Responsible for making testosterone that is responsible for making sperm cell
• Epididymis


  Brings cells to maturity
• Vas Deferens


  Transports mature sperm to urethra
• Ejaculatory Duct


  Fusion of Vas Deferens and Seminal Vesicle
• Urethra


  Carries urine from the bladder
• Seminal Vesicle


  Produces sugar-rich liquid (fructose) that provides sperm cells energy
• Prostate Gland


  Walnut-like structure that contributes additional fluid to the ejaculate
• Cowper's gland (Bulbourethral Gland)


  Produces a clear, slippery fluid that empties directly to urethra
• Mons Pubis


  Where the pubic hair is located
• Clitoris (g-spot)


  Enables females to experience sexual pleasure
• Ovaries


  Produce egg cells, estrogen and progesterone
• Estrogen


  Regulates monthly menstrual cycle
• Progesterone


  Supports pregnancy and menstruation
• PCOS


  Hormonal imbalance
• Luteinizing Hormones


  Helps ovaries to produce egg cell
• Fimbriae


  Fingerlike extensions that can connect to ovary. It is the passageway of the egg cells from ovary to fallopian tube
• Fallopian Tube (Oviducts)


  Narrow tubes that serves as a tunnel for the ova
• Uterus


  Where the embryo develops
• Endometrium (Uterine wall)


  It sheds every month unless an egg gets fertilized
• Cervix


  Connects the uterus to the vagina
• Vagina


  Accepts ejaculated semen from the penis during coitus (mating)
• Hymen


  The connective tissue in the vagina
• Menstrual Cycle


  1. Menstruation (Period)

  2. Follicular Phase

  3. Ovulation (Fertile Days)

  4. Luteal Phase
• Nervous System


  Major system of homeostasis and the main processing center
• Central Nervous System (CNS)


  • Processes the information from PNS. It is the command center to execute a motor response
  • Composed of Brain and Spinal chord
• Parts of the Hindbrain


  • Medulla
  • Pons
  • Cerebellum
• Midbrain


  Involved in alertness and the sleep/wake cycle
• Forebrain (Cerebrum)


  • Helps us for our speech, thinking, reasoning, senses and emotions
  • Has 2 hemisphere; the left (logic) and right (creativity)
• Thalamus


  Sensory motor
• Hypothalamus


  Controls the endocrine system
• Spinal Chord


  Sends motor commands from the brain to body
• Peripheral Nervous System (PNS)


  • Contains all of the nerves which feed into the brain and spinal chord
  • Autonomic Nervous System (Involuntary)
  • Somatic Nervous System (Voluntary)
• Sympathetic Nervous System


  Increased heart rate, breathing rate and inactive digestion
• Parasympathetic Nervous System


  Decreases heart rate and active digestion
• Neurons


  • Deliver signals from your CNS to PNS and vice versa
  • Dendrites - first to receive signals
  • Nucleus
  • Cell Body
  • Axon - sends signals
  • Axon Terminals - connected to/ has synapse