ss chapter 13.2
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Chapter 13Human Life and Health
Support Systems
Chapter 13Human Life and Health
Support Systems GEE Science
Summer RemediationMr. Nash
Donnie Bickham Middle SchoolRoom 204
GEE ScienceSummer Remediation
Mr. NashDonnie Bickham Middle School
Room 204
Support SystemsSupport Systems
Made of: Skin Muscles Bones
Made of: Skin Muscles Bones
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Support SystemsSupport Systems
Skin: Holds us together Prevents fluid loss Serves as a barrier from invaders Identifies us by fingerprints
Skin: Holds us together Prevents fluid loss Serves as a barrier from invaders Identifies us by fingerprints
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Support SystemsSupport Systems
Bones: Provide a structural framework Hold us up Provide a surface for muscle attachment
Bones: Provide a structural framework Hold us up Provide a surface for muscle attachment
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Support SystemsSupport Systems
Muscles: Allow us to move Some movements are involuntary
Heart beating, respiration Some movements are voluntary
Moving body parts
Muscles: Allow us to move Some movements are involuntary
Heart beating, respiration Some movements are voluntary
Moving body parts
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Integumentary SystemIntegumentary System
Integumentary system is composed of the skin.
Provides protection from injury, prevents dehydration, controls body temperature and excrete some wastes through sweating.
Integumentary system is composed of the skin.
Provides protection from injury, prevents dehydration, controls body temperature and excrete some wastes through sweating.
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Integumentary SystemIntegumentary System
Skin is composed of two main layers: Epidermis Dermis
Skin is composed of two main layers: Epidermis Dermis
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EpidermisEpidermis
Outer layer of skin, that is exposed to the environment.
Several cell layers thick to provide a protective barrier against the environment.
Outer layer of skin, that is exposed to the environment.
Several cell layers thick to provide a protective barrier against the environment.
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DermisDermis
Lies below the epidermis containing several structures. Hair Follicles
Each contains one hair Sebaceous glands
Secrete oils to lubricate skin and hair Sweat Glands
Release wastes and water to cool the body
Lies below the epidermis containing several structures. Hair Follicles
Each contains one hair Sebaceous glands
Secrete oils to lubricate skin and hair Sweat Glands
Release wastes and water to cool the body
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Muscular SystemMuscular System
Works together with the nervous system and the skeletal system.
Three Types of Muscle: Skeletal Smooth Cardiac
Works together with the nervous system and the skeletal system.
Three Types of Muscle: Skeletal Smooth Cardiac
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Skeletal MuscleSkeletal Muscle
Most muscle tissue. Attached to the bones of the skeleton. Voluntary muscles
Meaning you have to think about moving them.
Most muscle tissue. Attached to the bones of the skeleton. Voluntary muscles
Meaning you have to think about moving them.
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Smooth MusclesSmooth Muscles
Found in internal organs Found in the inside lining of blood
vessels Involuntary muscle
No conscious control
Found in internal organs Found in the inside lining of blood
vessels Involuntary muscle
No conscious control
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Cardiac MuscleCardiac Muscle
Only found in the heart Designed to withstand many
contractions without getting fatigued.
Only found in the heart Designed to withstand many
contractions without getting fatigued.
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Skeletal SystemSkeletal System
Comprised mostly of bones Bones are mostly calcium phosphate (Ca2PO4) Bones meet at joints
Ball and socket joints have free movement Hinge joints only move in one direction
Cartilage is flexible and attached to bones. Human embryos are cartilage and then turn into
bones.
Comprised mostly of bones Bones are mostly calcium phosphate (Ca2PO4) Bones meet at joints
Ball and socket joints have free movement Hinge joints only move in one direction
Cartilage is flexible and attached to bones. Human embryos are cartilage and then turn into
bones.
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ASSIGNMENTASSIGNMENT
Complete questions from Section B ONLY in your notebooks.
Complete questions from Section B ONLY in your notebooks.
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