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CHAPTER 4 CONTENT “IN THE MIDDLE OF DIFFICULTY LIES OPPORTUNITY.” ALBERT EINSTEIN TISSUES, GLANDS, AND MEMBRANES.

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Presentation on theme: "CHAPTER 4 CONTENT “IN THE MIDDLE OF DIFFICULTY LIES OPPORTUNITY.” ALBERT EINSTEIN TISSUES, GLANDS, AND MEMBRANES."— Presentation transcript:

1 CHAPTER 4 CONTENT “IN THE MIDDLE OF DIFFICULTY LIES OPPORTUNITY.” ALBERT EINSTEIN TISSUES, GLANDS, AND MEMBRANES

2 TISSUE CLASSIFICATION EPITHELEAL CONNECTIVE MUSCLE NERVE MUSCLE AND NERVE WILL BE DISCUSSED IN LATER CHAPTERS.

3 EPITHELEAL TISSUES SQUAMOUS CUBOIDAL COLUMNAR CAN BE ARRANGED IN DIFFERENT MANNERS SIMPLE STRATIFIED PSEUDO-STRATIFIED TRANSITIONAL

4 SQUAMOUS EPITHELIUM SIMPLE – ONE LAYER THICK; FOUND IN AREAS ALLOWING EXCHANGE TO OCCUR. STRATIFIED – FOUND WHERE WEAR AND TEAR OCCURS ON CELLS. PSEUDO-STRATIFIED- APPEAR LAYERED BUT ARE NOT TRANSITIONAL – ABLE TO EXPAND AREA BUT NOT BASIC CELL SHAPED

5 SPECIAL FEATURES OF EPITHELIUM GOBLET CELLS – PRODUCE MUCUS CILIA – HAIR LIKE PROJECTIONS INVOLVED WITH MOVEMENT ON EDGE OF STRUCTURE QUICKLY REPAIR SELF; ADAPT TO WEAR AND TEAR (IE CALLUSES ON HANDS)

6 GLANDS PRODUCES A SUBSTANCE SENT TO OTHER PARTS OF THE BODY TO FUNCTION EXOCRINE – THE SUBSTANCE EXITS THE GLAND THROUGH A DUCT ENDOCRINE – THE BLOOD VESSELS PICK UP THE SUBSTANCE WITHIN THE GLAND TO DISTRIBUTE TO THE BODY

7 CONNECTIVE TISSUE PROVIDES SUPPORT MATRIX – NONLIVING MATERIAL BETWEEN TISSUES MADE OF WATER, FIBER, AND HARD MINERALS

8 3 CLASSES OF CONNECTIVE TISSUE CIRCULATING – LYMPH, BLOOD GENERALIZED – FIBROBLASTS- TENDON, LIGAMENTS, JOINT CAPSULES STRUCTURAL – ASSOCIATED WITH THE SKELETON- CARTILAGE, BONE

9 GENERALIZED CONNECTIVE TISSUE LOOSE  AREOLAR – AROUND VESSELS/ ORGANS, IN MEMBRANES, BETWEEN MUSCLES, UNDER THE SKIN  ADIPOSE – FAT TISSUE DENSE  IRREGULAR – FIBROUS MEMBRANES TO COVER ORGANS  REGULAR – TENDONS (MUSCLE TO BONE) AND LIGAMENTS (BONE TO BONE)

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11 CARTILAGE STRONGER THAN OTHER TISSUES EXCEPT BONE MADE OF CHONDROCYTES HYALINE – TRANSLUCENT “GRISTLE”, COVERS LONG BONES, BETWEEN RIBS/ STERNUM, NOSE FIBROCARTILAGE – PUBIC SYMPHYSIS, SPINAL DISC, AROUND KNEE JOINT ELASTIC - OUTER EAR, LARYNX

12 BONE OSSEOUS TISSUE CARTILAGE AS A FETUS, OSSEFIES NEAR BIRTH AND CONTINUES TO DEPOSIT MINERALS OSTEOBLASTS – CELLS THAT WILL BECOME OSTEOCYTES (BONE CELLS), BUILD BONE OSTECLASTS – BREAK DOWN BONE TISSUE FOR RESORPTION BY THE BODY, ‘CRUNCH’ BONE MORE IN CHAPTER 7

13 MUSCLE TISSUE SKELETAL MUSCLE  VOLUNTARY, STRIATED, MULTINUCLEATED CARDIAC MUSCLE  INVOLUNTARY, STRIATED, INTERCALATED DISCS, MULTINUCLEATE SMOOTH MUSCLE  INVOLUNTARY, SMOOTH, UNINUCLEATE  MORE IN CHAPTER 8

14 NERVE TISSUE CENTRAL NERVOUS SYSTEM  BRAIN AND SPINAL CORD PERIPHERAL NERVOUS SYSTEM  ALL NERVES OUTSIDE THE SPINAL CORD AND BRAIN NERVE CELL – NEURON; IMPULSE TRAVELS FROM DENDRITES TO THE CELL BODY, THEN DOWN THE AXON TO THE AXON TERMINAL WHERE NEUROTRANSMITTERS ARE RELEASED TO STIMULATE THE NEXT DENDRITES OR ORGANS NEUROGLIA – SUPPORT CELLS FOR THE BRAIN MORE INCHAPTER 9 AND 10

15 EPITHELIAL MEMBRANES SEROUS – LINE THE CLOSED VENTRAL BODY CAVITIES; HAS PARIETAL AND VISCERAL LAYERS  PLEURA  PERICARDIUM  PERITONEUM MUCUS – LINE BODY WHERE IT IS EXPOSED TO OUTSIDE THE BODY CUTANEOUS – SKIN (CHAPTER 6)

16 CONNECTIVE TISSUE MEMBRANES SYNOVIAL – BETWEEN JOINTS; SECRETE LUBRICANT; ALSO LINE THE BURSAE MENINGES – COVERING OF BRAIN & SPINAL CORD FASCIA – FIBROUS BANDS/ SHEETS TO HOLD ORGANS IN PLACE  SUPERFICIAL – LIES UNDER THE SKIN, HOLDS FAT  DEEP – COVERS, PROTECTS SKELETAL MUSCLES FIBROUS PERICARDIUM – CAVITY WHERE HEART SITS PERIOSTEUM – FIBROUS COVERING OF BONE PERICHONDRIUM – COVERING AROUND CARTILAGE

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18 MEMBRANE AND DISEASE MEMBRANES TEND TO SEPARATE CAVITIES SO THEY SLOW THE SPREAD OF INFECTION. OTHER TIMES THE MEMBRANES THEMSELVES ARE INFLAMED. TYPES OF CONNECTIVE TISSUE DISEASES  SYSTEMIC LUPUS ERYTHEMATOSUS (SLE)  RHEUMATOID ARTHRITIS

19 TUMORS (– OMAS) BENIGN – DOES NOT SPREAD PAPILLOMA ADENOMA LIPOMA MYOMA ANGIOMA NEVUS CHONDROMA OSTEOMA MALIGNANT – SPREADS CARCINOMA ( FROM EPITHELIUM) SARCOMA – (CONNECTIVE TISSUE) NEUROMA – NERVE TISSUE  GLIOMA LYMPH TISSUE  LEUKEMIA  LYMPHOMA

20 DIAGNOSING CANCER ‘CAUTION’ – MONITOR THE SYMPTOMS MICROSCOPIC STUDY OF SAMPLE FROM BODY  BIOPSY – NEEDLE, PUNCH, ENDOSCOPIC, SURGICAL RADIOGRAPHY – X RAYS, DENSE TISSUE ULTRASOUND – SOUND WAVES, SOFT TISSUE COMPUTERIZED TOMOGRAPHY – CROSS -SECTIONAL XRAYS; USED WITH BRAIN MAGNETIC RESONANCE IMAGING – MAGNETS AND RADIO WAVES FOR SOFT TISSUE POSITRON EMISSION TOMOGRAPHY – RADIOACTIVE SUBSTANCE GIVEN WHICH CONCENTRATES IN ACTIVE CELLS = ‘HOT SPOT” – NOTES CANCER ACTIVITY SERUM TESTING – CA 125, GENES

21 TREATMENT OF CANCER STAGING – T, N, M SURGERY RADIATION CHEMOTHERAPY TARGETED IMMUNOTHERAPY

22 TISSUES AND AGING TISSUE LOSES ELASTICITY COLLAGEN LESS FLEXIBLE  BLOOD VESSELS LESS FLEXIBLE = HTN  LESS BLOOD FLOW TO LOWER = HARD TO HEAL TENDONS AND LIGAMENTS STRETCH  STOOPED POSTURE  JOINT INSTABILITY BONES LOSE CALCIUM  PRONE TO FRACTURE; OSTEOPOROSIS MUSCLES ATROPHY

23 MEDICAL TERMINOLOGY HIST/O- EPI- PSEUD/O- -BLAST CHONDR/O- OSS, OSSE/O – OST/E- MY/O- CARDI/O- LEUK/O GRAPH/O ULTRA- ANT/I- NEUR/O- PLEUR/O- PERI- -ITIS ARTHR/O- NEO- MAL- -OMA ONC/O- PAPILL/O- ADEN/O- ANGI/O-


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