Download presentation
1
MUSCLE & NERVOUS TISSUE
2
MUSCULAR TISSUE HIGHLY SPECIALIZED TO CONTRACT
OR SHORTEN, TO PRODUCE MOVEMENT THERE ARE 3 DIFFERENT TYPES OF MUSCLE TISSUE: SKELETAL, CARDIAC, & SMOOTH
3
MUSCLE TISSUE TYPES DIAGRAMS
4
SKELETAL(STRIATED) MUSCLE TISSUE- APPEARANCE
LONG, CYLINDRICAL CELLS MANY NUCLEI/CELL CELLS CONTAIN DISTINCTIVE STRIATION (BANDING PATTERN)
5
SKELETAL MUSCLE TISSUE LOCATION
SKELETAL MUSCLES ARE FOUND ATTACHED TO THE SKELETON (OVER BONES)
6
SKELETAL MUSCLE TISSUE FUNCTIONS
MUSCULAR CONTRACTIONS PULL ON BONES OR SKIN TO PRODUCE MOVEMENT OR CHANGES IN FACIAL EXPRESSION VERY STRONG, RAPID SHORT TERM CONTRACTIONS THAT REQUIRE NERVE IMPULSES TO FUNCTION UNDER VOLUNTARY CONTROL
7
CARDIAC MUSCLE TISSUE 1000X & 400X
.
8
CARDIAC MUSCLE TISSUE APPEARANCE
CELLS ARE BRANCHED AND JOIN TOGETHER TO FORM A NETWORK NUCLEI ARE IN THE MIDDLE OF CELLS (1 2 NUCLEI PER CELL) INTERCALATED DISKS PRESENT (DARK LINES THAT SHOW JUNCTIONS BETWEEN CELLS) SOME STRIATIONS ARE VISIBLE
9
CARDIAC MUSLCE TISSUE LOCATION
CARDIAC MUSCLE TISSUE IS FOUND ONLY IN THE HEART
10
CARDIAC MUSCLE TISSUE FUNCTIONS
PUMPS HEART AND PROPELS BLOOD THROUGH BLOOD VESSELS CONTAINS SPECIAL IMPULSE-CONDUCTING MUSCLE CELLS; ABLE TO INITIATE CONTRACTION WITHOUT BEING STIMULATED BY A NERVE IMPULSE UNDER INVOLUNTARY CONTROL
11
SMOOTH(VISCERAL) MUSCLE TISSUE - APPEARANCE
NO STRIATIONS LONG, SPINDLE-SHAPED CELLS SINGLE NUCLEUS IN CENTER OF CELL
12
SMOOTH MUSCLE TISSUE LOCATION
FOUND IN WALLS OF DIGESTIVE TRACT URINARY, RESPIRATORY, & REPRODUCTIVE TRACTS BLOOD VESSELS
13
SMOOTH MUSCLE TISSUE FUNCTIONS
SLOW, RHYTHMIC CONTRACTIONS CAUSED BY HORMONES & NERVE IMPULSES MOVE MATERIALS THROUGH BODY & ALLOW FOR BREATHING, BLADDER CONTROL, ETC. CONTRACTION & RELAXATION CONTROLS BLOOD FLOW IN VARIOUS BODY PARTS AND CAN CAUSE CRAMPING UNDER INVOLUNTARY CONTROL
14
NERVOUS TISSUE The neuromuscular junction is the junction where nerve endings plug into muscle cells.
15
NERVOUS TISSUE COMPOSED OF CELLS CALLED NEURONS
NEURONS RECEIVE & CONDUCT ELECTROCHEMICAL IMPULSES FROM ONE PART OF THE BODY TO ANOTHER NEURONS, ALONG WITH SUPPORTING CELLS, MAKE UP THE BRAIN, SPINAL CORD, AND NERVES
16
FUNCTIONS OF NERVOUS TISSUE
MONITOR ACTIVITIES IN VARIOUS PARTS OF THE BODY COMMUNICATES AND EXCHANGES INFORMATION BETWEEN ALL BODY PARTS CONTROL CENTER THAT GATHERS, INTEGRATES, STORES, & RECALLS INFORMATION AND COMMANDS THE NECESSARY ACTIONS
17
TYPES OF NEURONS SENSORY
TRANSMITS IMPULSES FROM RECEPTORS (CELLS IN EYES, EARS, SKIN, ETC.) TOWARD BRAIN/SPINAL CORD “SPY” OR “TATTLETALE” - TELLS THE BRAIN WHAT IS GOING ON
18
TYPES OF NEURONS ASSOCIATIVE NEURON
FOUND ONLY IN THE BRAIN & SPINAL CORD - FORMS A LINK BETWEEN THE SENSORY INPUT & MUSCLE ACTIVITY “MIDDLEMAN” OR “HEADQUARTERS” GETS THE INFORMATION, DECIDES WHAT TO DO, AND TELLS THE MOTOR NEURONS TO CARRY OUT THE PLAN
19
TYPES OF NEURONS MOTOR NEURON
TRANSMIT IMPULSES FROM THE BRAIN TO EFFECTORS (MUSCLES OR GLANDS) TO CAUSE AN ACTION DOES THE WORK, CARRIES OUT ORDERS “DRONE” OR “HENCHMAN”
20
REVIEW - 1 Which of the following terms describes cardiac muscle?
A. Striated B. Intercalated Disks C. Multinucleated D. Involuntary E. Branching
21
REVIEW - 2 Muscle tissue is designed to: A. Contract B. Shorten
C. Both A and B D. Protect the body from harmful UV rays
22
REVIEW - 3 All muscle tissue is A. Voluntary B. Extendable C. Striated
D. Involuntary
23
REVIEW - 4 Smooth muscle is: A. Found in the walls of hollow organs
B. Always attached to bone C. Found in the heart D. Always voluntary
24
REVIEW - 5 Which type of neuron is found only in the
brain and spinal cord? A. Motor neurons B. Sensory neurons C. Associative neurons D. All of the above E. None of the above
25
THE END
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.