Unit 7 Review Flashcards
The skeletal system has three main jobs: support, movement and ….
Protection of internal organs
Which system is made up of bones, cartilage, tendons, and ligaments?
Skeletal system
What type of skeletal tissue covers the ends of bones to keep them from rubbing against each other as the body moves?
Cartilage
The bones of your skeleton meet at ….
Joints
Bones are held together at joints, like your wrist, by stretchy tissue called …
Ligaments
A band of tough tissue that connects a muscle to a bone is called a …
Tendons
True or False
Cells form tissues, tissues form organs, organs form body systems, and systems work together to make up the human body.
True
Name the type of joint where your shoulder and upper arm meet.
Describe how it moves
The upper arm and shoulder meet at a ball-and-socket joint. This allows the arm to swing in a cirdle
Your upper and lower leg meet at a joint called the knee.
Name this type of joint and describe how it moves
The upper and lower leg meet at a hinge joint. which allows the bones to move backward and forward in only one direction
The top of your spine and the bottom of your head meet at a joint.
Name this type of joint and describe how it moves when you shake your head to tell someone “No”
This joint is called a pivot joint.
It allows the head to move in a circular path like a swivel chair
Which of your body systems is made up of bones that all fit together to give you shape and help you stand tall?
Skeletal system
What bones curve around your chest to protect your heart and lungs?
Ribs
As a baby grows, cartilage ….
is replaced by bone
What function does the skull serve for the skeleton
Protection
True or False
The phalanges of the hands and feet help the skeleton move
True
Which bone provides mostly support for the skeleton?
a) femur
b) skull
c) clavicle
d) sternum
femur
Your vertebrae, or backbone, run along your back from the base of your skull to below your waist. The shape of each vertebra can best be described as :
irregular
Your femur is a bone that starts at your pelvis and ends at your knee. Its shape can best be described as:
Long
Name bones which function is to support
Vertebra Femur Ribs Pelvis Tibia
Name bones which function is to protect
Skull
Ribs
Patellas
Spinal Vertebra
Name bones which function is to help movement
Carpals (Legs): - Feet Phalanges - Femur - Fibula - Tibia
(Arms):
- Hand Phalanges
- Umerus
- Radius
- Ulna
What are three types of joints?
- Ball-in-sock joint (moves in all directions, circle)
- Hinge joint (moves backward and forward)
- Pivot joint (moves in a circular path)
There are two types of bone tissue compact and …
Spongy
How does the structure of bones make bones both strong and light?
They are hard on the outside and hollow in the middle
Red marrow is located in the cavities of spongy bone. What job does red marrow do?
Forms blood cells
Yellow marrow is located in the hollow section of long bones of adults, and is surrounded by compact bone. What job does yellow marrow do?
Stores fat
True or False
Bones are made up of various types of cells, blood vessels, nerves, and minerals.
True
True or False
Voluntary muscles move when you want them to, while involuntary muscles move automatically?
True
What is the function of cardiac muscle?
It moves blood through the body, since it makes the heart.
What is the function of skeletal muscle?
It pulls on bones to make joints move.
What is the function of smooth muscle?
It can keep the digestive system working.
Are skeletal muscles voluntary or involuntary?
Voluntary
Would you say smooth muscles are voluntary or involuntary?
Involuntary
What are some voluntary muscles?
arm, leg, mouth, neck
What are some involuntary muscles?
heart and digestive system
The muscles that pull on your bones to make your joints move are called….
skeletal muscles
The muscles found in the walls of your stomach, intestines, and blood vessels are called….
smooth muscles
Your heart is made out of….
cardiac muscles
Which are voluntary muscles?
skeletal muscles are voluntary
Which are involuntary muscles?
smooth and cardiac muscles
Which muscle is a flexor when you ben your elbow?
Biceps (top) or triceps (bottom)
Biceps
Which muscle is an extender when you ben your elbow?
Biceps (top) or triceps (bottom)
Triceps
How must the skeletal muscles work to move a limb
in pairs
How do the biceps and triceps act?
The biceps contracts to bend the elbow as the triceps relaxes
True or False
Muscles work in pairs to move your body by contracting
True
What happens to the length of a muscle when the muscle contracts?
It gets shorter
What is called the top layer of the skin?
epidermis
How do you call the layer under the epidermis?
Dermis
Which system includes the hair and the nails?
skin system
What is the body’s largest organ?
skin
What are the main functions of the skin?
- keeping the body’s internal temperature constant
- protecting against infection
- sensing the environment
True or false
The epidermis is composed of overlapping cells that forms a tough barrier from germs and protects the body
true
What are some characteristics of the dermis?
- It contains sweat glands and oil glands
- It contains blood vessels
- It has nerves
