Biology chapter 45

What are the 3 types of muscles?

-Skeletal muscle -cardiac muscle -smooth muscle

Why do bones have blood vessels?

Bones have blood vessel because it supply nutrients and nerve which signal pain.The blood vessel run through interconnected haversian canal creating a network that carries nourishment to the living bone tissue.

The heart and blood vessels are separate organs that form the----

Cardiovascular system.

In a fetus, most bones are originally made of ______________________.

Cartilage

What type of tissue is specialized to cover the inner and outer surfaces of the internal organs?

Epithelial tissue

Muscles that bend joints are categorized as flexors or extensors?

Flexor known as muscle that bend joints

What is bone marrow? And what is the difference between red and yellow marrow?

Is the soft tissue of the bone.Red bone produces red blood,platelets and certain types of white blood,while yellow bone consists fat cell and serve an energy reserve.

Draw a ball and socket joint. Where do we have ball and socket joints in the human body?

It is the shoulder joint

The point where 2 or more bones meet is called a _____

Joints

Describe actin and myosin. What do they do? Where are they found?

Myosin is the thin filament that made up of proteins.It gives striated muscle tissue its stripped appearance Actin is the thick filament that made up of proteins.anchored at the point of the structure. They are found in skeletal muscle

Organs that work together form an _______________ ________________________.

Organ system

Muscles exert force by Pushing/Pulling on surrounding tissues. (circle the correct one)

Pulling

What part of the skeleton protects the heart and the lungs?

Ribs

In the muscular system, the region between Z lines is called the

Sarcomere.

Identify the structure and function of smooth muscle. Where can you find it? Is it under conscious control?

Smooth muscle forms the walls of stomach,intestines,blood vessels,and other internal organ.It helps to move food from digestive tract.It is not under conscious control.

Where can smooth muscle be found?

Stomach,blood vessel,and other internal organs.

What does the human skeleton do for the internal organs?

Support and protect delicate internal body.

Muscle tissue functions to move bones, blood, and food through the digestive tract. True or false?

TRUE

What is the insertion of a muscle?

The point where the muscle attach to the moving bone (radius)

What is the origin of a muscle?

The point where the muscle attach to the stationary bone(scapula)

The heart and lungs are located in which body cavity?

Thoracic cavity

From the smallest functional unit to the largest, the body is organized how? (what are the levels of organization from smallest to largest?)

atom-molecule/compound-organelle-cells-tissue-organ-organ system-organism

Draw and label the axial and appendicular skeletons.

axial bones:head,ribs,skull appendicular bones:legs,arms,and pelvis.

Ligaments attach _____ to _____

bone to bone

The type of bone that provides the greatest strength for support is _______________________ bone.

compact

Blood, bone, and cartilage are examples of______

connective tissue

A person with a broken pelvis would be unable to walk. Explain why.

it connects the legs bones and lumbar bone to help to walk

Tendons connect ________ to ______.

muscle to bone

The total amount of force that a muscle exerts depends on the total number of individual muscle fibers that have been stimulated.

yes