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: SKINSUPPORTMUSCULATUREChemical:NERVOUSENDOCRINE
3 SYSTEMS: Multiple organs working together to serve a body function Tissues: cells working together to do a simple functionOrgans: tissues working together to do a complex functionCells: smallest basic unitsRespiratory system
4 Systems are made of: Organs, Tissues, Cells,& connective tissues Tissues include:a. Epithelial tissueb. Muscle tissuec. Connecting tissue1) Cartilage2) Tendons3) LigamentsSmoker’s Lung Tissue
5 The Skin: 1. Structure………. a. Epidermis made ofepithelial cellsb. Dermis withsweat glandshair folliclesoil glandscapillariesnerve cells
6 A. The Skin..……….. the largest organ in the body 2. Function:protectiontemperature controlsensoryintegrity of the bodysecretions from glandsproduces Vitamin D
7 Support Systems may be: Exoskeleton:Endoskeleton:Internal set of bonesHard outer covering
8 Exoskeletons Hard outer covering made of chitin or shell examples: lobster, snail, squidDoes the starfish have and exoskeleton ?
9 No !.. An Endoskeleton: Made of 1). cartilage or 2). bone Covered by musclesskinExamples: starfish, shark, mammals.
10 B1. Human Endoskeleton made of Axial: skull, backbone, ribs, sternumAppendicular: arms, legs, shoulders, hips,wrists, anklesBoo !
11 Endoskeletons also have……. 1c. Ligaments that hold bone to bone1d. Tendons that hold muscle to bone, “muscle tenders”1e. Joints where 2 bones come together
15 Bone Deformation: Lack of Vitamin D “Bow-legged”
16 B3. The Support System Functions: Protection of organsMovementStores calcium & potassiumProduces RBC (marrow)Supports
17 C1.Three types of Muscle: A. Smooth: involuntary control of internal organs for digestion, & blood vesselsB. Cardiac: involuntary control of the heartC. Skeletal: Voluntary control of the skeletal muscles for movement
18 The Musculature System…….. 2. Structure:Voluntary MusclesStriated-SkeletalInvoluntary MusclesCardiac- HeartSmooth-StomachStriated SkeletalSeveral nucleiBox shaped, many mitochondria
19 Cardiac Muscle: Fewer Striations Fewer Mitochondria Large nuclei Lattice work of spaces between some cellsStill square shapeOne nuclei per cell
20 Smooth Muscle: Eye shaped One nuclei per cell No lattice work No striationsLong & drawn outFewer 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 MuscleMuscles are made ofBundlesOf fibers withSmaller subunits of myofibrilsMyofibrils are made ofActin & Myosin chemcialsrequire ATP energyTo slide past each otherActinMyosinContracted Muscle
23 C6. Musculature System Function: MovementStores ProteinMaintains Body Shape