O slideshow foi denunciado.
Utilizamos seu perfil e dados de atividades no LinkedIn para personalizar e exibir anúncios mais relevantes. Altere suas preferências de anúncios quando desejar.

Anatomy & Physiology Lecture Notes - Brain

4.388 visualizações

Publicada em

website: http://am-medicine.com

Youtube Channel : https://www.youtube.com/user/ammedicine

Facebook group: https://www.facebook.com/groups/am.medicine

Publicada em: Saúde e medicina
  • Entre para ver os comentários

Anatomy & Physiology Lecture Notes - Brain

  1. 1. 1. List and describe the 5 elements of a reflex arc. 2. List an example of a reflex. 3. What is the difference between a reflex and a voluntary reaction?
  2. 2. 1. Cerebral Hemispheres 2. Diencephalon 3. Brain stem 4. Cerebellum
  3. 3.  L & R hemispheres  Corpus callosum: large fiber tract; connects 2 hemispheres  Lobes: major regions (named for cranial bones)  ParietalParietal, frontalfrontal, occipitaloccipital, temporaltemporal  Gyri (gyrus) = elevated ridges of tissue  Sulci (sulcus) = shallow grooves  Fissures = deeper grooves, separate large regions of brain  Motor & sensory function: opposite hemispheres
  4. 4.  Grey matter  “Executive suite”  conscious mind
  5. 5. 3 main structures: 1. Thalamus: relay station for incoming info 2. Hypothalamus: A. Autonomic control center (heart rate, BP, digestion) B. Emotional response (limbic system) C. Body temperature regulation D. Regulate food intake E. Sleep-wake cycles F. Control endocrine system  pituitary gland at base 3. Epithalamus: pineal gland (sleep-wake cycle)
  6. 6.  Programmed, automatic behaviors for survival  3 regions: 1. Midbrain: vision, hearing, reflex 2. Pons: breathing 3. Medulla oblongata: heart rate, BP, breathing, swallowing, vomiting, coughing, sneezing
  7. 7.  Balance, equilibrium, timing of skeletal muscle activity
  8. 8.  Meninges: connective tissue covering CNS structures  Dura mater (leathery outer), arachnoid mater (web-like middle), pia mater (surface of brain)  Meningitis: inflammation of meninges; bacterial or viral infection  Cerebrospinal fluid (CSF): watery cushion to protect NS from trauma  Lumbar (spinal) tap – test for infection, tumors, multiple sclerosis
  9. 9.  Bacterial  antibiotics  Herpes meningitis  antiviral meds  IV fluids  Prevention: vaccines for bacterial infections (HiB)
  10. 10. NO:  Urea  Toxins  Proteins  White blood cells  Bacteria  Most drugs YES:  Water  Glucose  Amino acids  Gases  Fat-soluble substances  Some drugs: anesthetics, alcohol, nicotine

×