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Protection, Support & Locomotion Systems

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Presentation on theme: "Protection, Support & Locomotion Systems"— Presentation transcript:

1 Protection, Support & Locomotion Systems
Ch 34 Guide & Intro to Coordination Systems

2 COORDINATION SYSTEMS Systems that Physically and Chemically coordinate the body:

3 SYSTEMS: Multiple organs working together to serve a body function
Tissues: cells working together to do a simple function Organs: tissues working together to do a complex function Cells: smallest basic units Respiratory system

4 Systems are made of: Organs, Tissues, Cells,& connective tissues
Tissues include: a. Epithelial tissue b. Muscle tissue c. Connecting tissue 1) Cartilage 2) Tendons 3) Ligaments Smoker’s Lung Tissue

5 The Skin: 1. Structure……….
a. Epidermis made of epithelial cells b. Dermis with sweat glands hair follicles oil glands capillaries nerve cells

6 A. The Skin..……….. the largest organ in the body
2. Function: protection temperature control sensory integrity of the body secretions from glands produces Vitamin D

7 Support Systems may be:
Exoskeleton: Endoskeleton: Internal set of bones Hard outer covering

8 Exoskeletons Hard outer covering made of chitin or shell examples:
lobster, snail, squid Does the starfish have and exoskeleton ?

9 No !.. An Endoskeleton: Made of 1). cartilage or 2). bone Covered by
muscles skin Examples: starfish, shark, mammals.

10 B1. Human Endoskeleton made of
Axial: skull, backbone, ribs, sternum Appendicular: arms, legs, shoulders, hips,wrists, ankles Boo !

11 Endoskeletons also have…….
1c. Ligaments that hold bone to bone 1d. Tendons that hold muscle to bone, “muscle tenders” 1e. Joints where 2 bones come together

12 Types of Joints

13 Joint Damage: Arthritis

14 B2. Bone Formation:

15 Bone Deformation: Lack of Vitamin D

16 B3. The Support System Functions:
Protection of organs Movement Stores calcium & potassium Produces RBC (marrow) Supports

17 C1.Three types of Muscle:
A. Smooth: involuntary control of internal organs for digestion, & blood vessels B. Cardiac: involuntary control of the heart C. Skeletal: Voluntary control of the skeletal muscles for movement

18 The Musculature System……..
2. Structure: Voluntary Muscles Striated-Skeletal Involuntary Muscles Cardiac- Heart Smooth-Stomach Striated Skeletal Several nuclei Box shaped, many mitochondria

19 Cardiac Muscle: Fewer Striations Fewer Mitochondria Large nuclei
Lattice work of spaces between some cells Still square shape One nuclei per cell

20 Smooth Muscle: Eye shaped One nuclei per cell No lattice work
No striations Long & drawn out Fewer Mitochondria

21 How Do Muscles Contract?
Muscle bundles work in opposite pairs: Contracting & Relaxing (biceps & triceps in the arms)

22 4a. Sliding Filament Theory of MuscleContraction:
Relaxed Muscle Muscles are made of Bundles Of fibers with Smaller subunits of myofibrils Myofibrils are made of Actin & Myosin chemcials require ATP energy To slide past each other Actin Myosin Contracted Muscle

23 C6. Musculature System Function:
Movement Stores Protein Maintains Body Shape

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