TOPIC : Locomotive Systems Aim : Use textual evidence to explain the parts and functions of the skeletal system. Do Now: Bone marrow reading HW : Endocrine System ISN Bring your textbook tomorrow! CL Nervous and Endocrine Systems due Thursday Nervous and Endocrine System exam on Friday
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TOPIC: Locomotive Systems Aim: Use textual evidence to explain the parts and functions of the skeletal system. Do Now: Bone marrow reading HW: Endocrine.
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TOPIC: Locomotive Systems Aim: Use textual evidence to explain
the parts and functions of the skeletal system.
Do Now: Bone marrow reading
HW: Endocrine System ISNBring your textbook tomorrow!CL Nervous and Endocrine Systems due
ThursdayNervous and Endocrine System exam on Friday
The diagram shows neurons working together in a reflex action. 1.Identify each labeled structure.
2.Identify the chemical released into area X and the structures that the chemical attaches to.
3.Identify the part of the neuron that releases the chemical.
4.Identify the division of the nervous system that neurons A and C are found.
5.Identify the division of the nervous system that neuron B are found.
A
B
C
D
E
C
ABMedulla oblongata
Cerebellum
Cerebrum
Involuntary activities
Memory, thinking and reasoning
Balance and coordination
• The smallest is the stirrup bone in the ear which can measure 1/10 of an inch.
Your face has 14 bones.
One fourth of your bones are located in your feet.
True or False: Children often bend their bones rather than break them.
TRUE! Their bones are more pliable, and tend to bend more without breaking.
1. Describe the functions of the skeleton.
• Gives body shape & support
•Protects internal organs
•Attaches to muscles to help bones move
•Produces blood cells
•Stores calcium and phosphorus
2. Which life process does the skeletal system help carry out?
• LOCOMOTION
3. Describe the two types of bone marrow.
• Yellow marrow = fat cells
•Red marrow = produces blood cells
4. Identify the systems that regulate locomotion.
• Nervous and endocrine systems
5. Describe the function of ligaments.
• Tough band of tissue that holds bones together
6. Describe the function of tendons.
• Tough band of tissue that connects muscles to bones
7. Describe 4 characteristics of cartilage.
• Smooth and slippery• Flexible
• Acts as a shock absorber
• Makes movement easier by reducing friction that would be caused by bones rubbing together
• Does not contain blood vessels- Nutrients delivered by nearby blood
vessels
•Give shape to certain body parts (ears, nose)
•Skeleton of newborn made mostly of cartilage
8. Identify some locations of cartilage in your body.
•Trachea
• In between vertebrae
• At ends of bones
• In joints
TOPIC: LocomotionAim: Explain the structure and
functions of the 3 types of muscles.
Do Now: Take out endocrine system ISN and skeletal system notes.
HW: Ditto – Nervous System ReviewCL Nervous and Endocrine Systems
due Thursday
1. Identify each labeled gland in the diagram. Leave space under each gland.
2. Under each gland, write the hormone(s) released and the function of the hormone(s).
3. In a complete sentence, identify how hormones are transported throughout the body.
4. In a complete sentence, identify the types of cells that are affected by hormones.
5. In a complete sentence, identify the proteins that hormones attach to on these types of cells.
8. Identify some locations of cartilage in your body.
•Trachea
• In between vertebrae
• At ends of bones
• In joints
Cranium = Skull
Clavicle = collar boneRib cage
Scapula (shoulder blades)
Sternum = breast bone
Vertebrae = backbone(spinal column)
Scoliosis
Humerus = upper arm boneUlna & radius = lower arm
Pelvis = hips
Femur = thigh bone (longest & strongest)
Patella = knee cap
Carpals = wrist bonesMetacarpals = hand bones
Phalanges = fingers & toes
Did You Know?
Humans and giraffes have the same number
of bones in their necks? A
Giraffe’s neck vertebrae are just
much, much longer!
The only bone not broken so far during any ski accident is one located
in your inner ear.
If you break your wrist as an adult it will take you 8 weeks to
heal. A five year old child who
breaks their wrist only takes 3 weeks to heal.
Babies are bornwithout the patella (knee bone)
it develops between ages 2 and 5.
Let’s summarize…
1. Identify structures that make up your skeletal system.
2. Identify the functions of your skeletal system.
3. Describe the difference between tendons and ligaments.