Skeletal and Muscle Science Test Flashcards
January 28, 2025
What are the three types of ribs?
True, False, and Floating ribs
What are the 5 vertabre sections called?
Cervical, thoractic, lumbar, sacrum, and coccyx
What is another name for the ribs?
Thoractic cage/cavity
of vertebra?
33 vertebra
Be able to explain the 5 functions of the skeletal system and what each one means
Support, Storage, protection, red blood cell production, and movment
What are the 4 basic bone shapes and examples?
Long, short, curved/flat, and irregular
What are bones made of?
bone marrow, spongy, and compact
How many bones are in the adult body? Baby?
Adult:206
Baby: 300
What are the 5 types of joints we went over in class. Be able to give examples of them
Saddle Joint
Fact: It lets you move in two directions, like forward/backward and side to side.
Place: Found in your thumb, where it meets your hand.
- Pivot Joint
Fact: It lets one bone rotate around another.
Place: Found in your neck, helping you shake your head “no.”
- Ball and Socket Joint
Fact: This joint lets you move in all directions, like a circle.
Place: Found in your shoulder and hip.
- Hinge Joint
Fact: It works like a door, moving in one direction.
Place: Found in your elbow and knee.
- Immovable Joint
Fact: These joints don’t move—they hold bones together tightly.
Place: Found in your skull.
What is muscle fatigue?
When your muscles get tired while doig an exercies
What does DOMS stand for
Delayed Onset Muscle Soreness (DOMS) Any type of activity that places unaccustomed loads on muscle may lead to delayed onset muscle soreness (DOMS).
What is bone marrow?
Bone marrow is a spongy substance found in the center of the bones.
What are the 4 functions of the muscular system
movement, posture, joint stability, and heat production
Why are bones important?
They protect vital organs
How many muscles in the body?
Around 630
What are voluntary muscles?
movments that we control. (like walking) can be found in abs, bicep, triceps
What are involutntary muscles?
Controlled by an unconcuieos part of the brain (ex:breathing) found in your digestive tract, bladder, and blood vessels.
What are Visceral muscles?
Controlled by the unconscious part of the brain. It is a Smooth Muscle
What is a Cardiac Muscle?
Only found in heart. Job is to pump blood. Controlled by the unconscious part of the brain.
What are skeletal muscles?
Striated (striped) with light and dark fibers. We can strengthen these muscles. Voluntary muscle
Smallest Muscle?
The smallest muscles in the human body are in your inner ear.
Striations are alternating light and dark bands that give muscles their striped appearance (True or False)
True
What is a dense, hard outer layer of bones that provides strength and protection, forming the primary support of the body
compact bone
What is lactate?
a byproduct of anaerobic exercise
How many Ribs do we have?
24, 12 on each side
What is the difference between osteoblasts and osteoclasts
osteoblasts build new bone, while osteoclasts break down and reabsorb it
The 3 types of muscles in the body are:
Smooth, cardiac, skeletal
The soft tissue found inside long bones is where new blood cells are made is called
Marrow
Skeletal muscle is?
connected to the bones by tendons
Bones connect to other bones are called
ligaments
The bones at the top of the skull are an example of what kind of joint?
immovable
