a hero of the Trojan War in Greek mythology; he could only be killed by a wound just above his heel
Achilles
weak or in danger
vulnerable
What is a system?
A)a group of items or things that are connected and work togetherB)a group of items that work against each otherC)a single piece of something that does a jobD)a single organ
Which of the following is NOT a type of joint?
A)partially movableB)immovableC)movableD)cartilage movable
The nerve that sends messages from your ears to your brain about what your hear is called the _______.
A)auditory nerveB)optic nerveC)craniumD)medulla
a system of raised bumps that blind people feel with their fingers and use to read and write
Braille
a path along which nerves send messages to the brain
dendrite
__________ are the smallest units that make up living things and are microscopic.
A)organsB)tissuesC)cellsD)systems
The skeletal muscles work closely with the skeleton to help us move.
A)TrueB)False
a movement of a body part to communicate
gesture
a flexible tissue that cushions the joints where your bones meet
cartillage
to break down food in the stomach so it can be used by your body
digestion
Bones that are located down the center of a vertebrate's body are called _______.
A)appendagesB)axial bonesC)appendicular bonesD)skull bones
Which of the following is an example of a voluntary action?
A)breathingB)heart beatingC)digesting foodD)lifting a box
one half of a round object
hemisphere
part of the brain located under the cerebrum, divided into two halves; it helps with voluntary movement of muscle groups and balance
cerebellum
a thin membrane inside the ear that vibrates when sound hits it
eardrum
Why is the skeletal system as a whole important to the human body?
A)The skeletal system is a group of organs that help the body breathe.B)The skeletal system is a group of tissues that keep the body moving.C)The skeletal system is a framework that keeps the body from toppling over.D)The skeletal system is not important to the the human body.
Which of the following is NOT a section of the brain?
A)cerebellumB)cerebrumC)ligamentD)medulla
automatic; your heart is an example of this type of muscle
involuntary
a fluid-filled coil in the inner ear that is lined with hairs that vibrate when sound waves hit the eardrum; the nerves connected to the hairs send messages to the brain that tell you what you are hearing
cochlea
the small, “outside bone” in the lower part of your leg
fibula
Body tissue made of long cells that can contract, or tighten, and relax to produce motion are called _____________.
A)ligamentsB)tendonsC)cardiacD)muscles
The nerve that sends messages from your eyes to your brain about what you see is called the ________.
A)auditory nerveB)optic nerveC)medullaD)cranium
a tissue connecting bones to bones
ligament
brain stem
medulla
part of your body made of cells and tissues that performs a specific job
organ
unable to act, move, or feel a part or parts of the body
paralyzed
small bone that is part of the spinal column or backbone
vertabra
the lining at the back of the eye that is very sensitive to light; the nerves in this send messages to the brain
retina
on purpose, not by accident; moving your hand to write with a pencil is an example of this kind of muscle action
voluntary