which of the following is not part of the axial skeleton l.
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Which of the following is NOT part of the axial skeleton? - PowerPoint PPT Presentation


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Which of the following is NOT part of the axial skeleton?. skull vertebral column pelvis rib cage. Which of the following provides support for the body, attachment sites for muscles, and protection for internal organs?. skin spinal cord skeleton joints.

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slide2
Which of the following provides support for the body, attachment sites for muscles, and protection for internal organs?
  • skin
  • spinal cord
  • skeleton
  • joints
which of the following is not a function of bones in the human skeletal system
Which of the following is NOT a function of bones in the human skeletal system?
  • store minerals
  • regulate body temperature
  • move body parts
  • protect organs
the main function of the skull is to
The main function of the skull is to
  • produce blood cells.
  • protect the heart and lungs.
  • protect the brain.
  • act like a lever for muscle attachment.
which of the following contains nerves and blood vessels and runs through the compact bone
Which of the following contains nerves and blood vessels and runs through the compact bone?
  • osteocytes
  • Haversian canals
  • bone marrow
  • periosteum
which of the following is true about red marrow
Which of the following is true about red marrow?
  • It makes blood cells.
  • It stores fat.
  • It produces new bone.
  • It is found in compact bones of adults.
the periosteum is a
The periosteum is a
  • place for storing fat cells.
  • location for red blood cell production.
  • tough layer of connective tissue surrounding a bone.
  • latticework structure that adds strength to the bone.
where are haversian canals located
Where are Haversian canals located?
  • in the periosteum
  • running through compact bone
  • running through cartilage
  • running through spongy bone
which of the following is not true about spongy bone
Which of the following is NOT true about spongy bone?
  • It is less dense than compact bone.
  • It is organized into structures that resemble a bridge’s supporting girders.
  • It is soft and spongy.
  • It adds strength to bone without adding mass.
what is the skeleton of an embryo mainly composed of
What is the skeleton of an embryo mainly composed of?
  • bone
  • cartilage
  • bone marrow
  • growth plates
what is the function of cells called osteoclasts
What is the function of cells called osteoclasts?
  • build and maintain bone
  • break down bone
  • support the skin
  • produce blood cells
if a bone is broken which of the following produces new bone tissue to heal the break
If a bone is broken, which of the following produces new bone tissue to heal the break?
  • marrow
  • Haversian canals
  • osteoblasts
  • leukocytes
which are mature bone cells embedded in the bone matrix
Which are mature bone cells embedded in the bone matrix?
  • osteoblasts
  • osteocytes
  • osteoclasts
  • cartilage
ossification occurs in which of the following
Ossification occurs in which of the following?
  • embryos
  • newborn children and teenagers
  • embryos and newborn children
  • embryos, newborn children, and teenagers
diagram a in figure 36 1 is an example of a
Diagram A in Figure 36–1 is an example of a
  • ball-and-socket joint.
  • saddle joint.
  • hinge joint.
  • pivot joint.
saddle joints are represented in which diagram in figure 36 1
Saddle joints are represented in which diagram in Figure 36–1?
  • Diagram A
  • Diagram B
  • Diagram C
  • Diagram D
slide18
Which type of freely movable joints in Figure 36–1 are examples of joints that permit only back-and-forth movement?
  • Diagram A
  • Diagram B
  • Diagram C
  • Diagram D
ligaments connect
Ligaments connect
  • cartilage to bone.
  • muscle to muscle.
  • bone to muscle.
  • bone to bone.
in figure 36 2 b is an example of
In Figure 36–2, B is an example of
  • cardiac muscle.
  • skeletal muscle.
  • smooth muscle.
  • heart muscle.
slide23
Which diagram(s) in Figure 36–2 show(s) muscles that decrease the size of the pupils of your eyes in bright light?
  • A
  • B
  • C
  • A and C
about what percentage of the mass of the human body is made up of muscle
About what percentage of the mass of the human body is made up of muscle?
  • less than 10 percent
  • 20 percent
  • 30 percent
  • more than 40 percent
where is the protein called actin located in the body
Where is the protein called actin located in the body?
  • ATP molecules
  • thin filaments
  • myosin filaments
  • acetylcholine neurotransmitters
in addition to myosin what other protein is involved in skeletal muscle contraction
In addition to myosin, what other protein is involved in skeletal muscle contraction?
  • collagen
  • actin
  • ATP
  • chitin
what happens when the thin filaments in a muscle fiber slide over the thick filaments
What happens when the thin filaments in a muscle fiber slide over the thick filaments?
  • A muscle contracts.
  • A muscle relaxes.
  • A muscle both contracts and relaxes.
  • A muscle neither contracts nor relaxes.
myosin and actin make up
Myosin and actin make up
  • osteoblasts.
  • collagen.
  • myofibrils.
  • red marrow.
slide30
According to the sliding-filament model, which of the following steps does NOT occur in muscle contraction?
  • Myosin and actin filaments come near each other.
  • Myosin filaments form cross-bridges with actin filaments.
  • Cross-bridges pull the two filaments past each other.
  • Actin filaments return to their original positions.
what tough connective tissues join skeletal muscles to bones
What tough connective tissues join skeletal muscles to bones?
  • joints
  • ligaments
  • periosteum
  • tendons
slide32
Which of the following types of muscle generally remains in a state of partial contraction when your legs are straight?
  • skeletal muscle
  • cardiac muscle
  • smooth muscle
  • all of the above
which of the following is not true about muscle tone
Which of the following is NOT true about muscle tone?
  • It is responsible for keeping the back and legs straight when you’re relaxed.
  • It is increased through regular exercise.
  • It describes the tightening of some muscles.
  • It increases with age.
the elbow joint bends when the
The elbow joint bends when the
  • triceps muscle contracts.
  • triceps muscle relaxes.
  • biceps muscle contracts.
  • biceps muscle relaxes.
which of the following is not true about the effects of exercise on muscles
Which of the following is NOT true about the effects of exercise on muscles?
  • It increases muscle tone.
  • It adds material to the outside of the muscle cells.
  • It increases the efficiency of the heart.
  • It can cause muscles to visibly increase in size.
the most important function of the skin is
The most important function of the skin is
  • protection.
  • storing fat.
  • sweating.
  • insulation.
what two layers make up skin
What two layers make up skin?
  • keratin and dermis
  • epidermis and melanin
  • epidermis and dermis
  • melanin and keratin
the top layer of the epidermis is made of
The top layer of the epidermis is made of
  • flat, dead cells.
  • melanin.
  • collagen.
  • healthy, living cells.
which of the following is not a function of skin
Which of the following is NOT a function of skin?
  • helps regulate body temperature
  • removes body wastes
  • contracts and relaxes muscles
  • helps prevent infection
what happens when the keratin producing cells of the skin die
What happens when the keratin-producing cells of the skin die?
  • Melanin and keratin are produced.
  • An additional dermis layer is formed.
  • A waterproof coating is formed.
  • Melanin is produced.
from which of the following does the basic structure of hair and nails form
From which of the following does the basic structure of hair and nails form?
  • sweat
  • melanin
  • collagen
  • keratin
individual hairs are columns of cells that died after becoming filled with
Individual hairs are columns of cells that died after becoming filled with
  • keratin.
  • dermis.
  • melanin.
  • sweat.
which of the following are tubelike pockets of epidermal cells that extend into the dermis
Which of the following are tubelike pockets of epidermal cells that extend into the dermis?
  • epidermal layers
  • keratin layers
  • melanin cells
  • hair follicles
which of the following structures is not formed by keratin
Which of the following structures is NOT formed by keratin?
  • reptile scales
  • feathers
  • tip of the nose
  • hair
bones provide a system of fixed points on which muscles act to produce movement
Bones provide a system of fixed points on which muscles act to produce movement. _________________________
  • True
  • False
the appendicular skeleton consists of the arms legs pelvis and shoulder area
The appendicular skeleton consists of the arms, legs, pelvis, and shoulder area. _________________________
  • True
  • False
the periosteum is a tough layer of connective tissue that surrounds a typical bone
The periosteum is a tough layer of connective tissue that surrounds a typical bone. _________________________
  • True
  • False
red marrow is made up primarily of fat cells
Red marrow is made up primarily of fat cells. _________________________
  • True
  • False
in adults cartilage is found in parts of the body where flexibility is needed
In adults, cartilage is found in parts of the body where flexibility is needed. _________________________
  • True
  • False
the different classes of joints are based on their location
The different classes of joints are based on their location. ______________________________
  • True
  • False
because skeletal muscle cells are long and slender they are often called muscle fibers
Because skeletalmuscle cells are long and slender, they are often called muscle fibers. _________________________
  • True
  • False
the thick filaments in myofibrils contain a protein called actin
The thick filaments in myofibrils contain a protein called actin. _________________________
  • True
  • False
atp supplies the energy for muscle contraction
ATP supplies the energy for muscle contraction. _________________________
  • True
  • False
melanocytes are located in the dermis
Melanocytes are located in the dermis. _________________________
  • True
  • False
the outer layer of dead cells of the skin is shed every seven to ten weeks
The outer layer of dead cells of the skin is shed every seven to ten weeks. _________________________
  • True
  • False
nails grow from an area of rapidly dividing cells known as the nail root
Nails grow from an area of rapidly dividing cells known as the nail root. _________________________
  • True
  • False
slide64

0 of 5

A less dense tissue known as ____________________ is found in the ends of long bones and in the middle part of short, flat bones.
slide66

0 of 5

Unlike bone, cartilage does not contain any ____________________ and must therefore rely on nutrients in surrounding tissues.
a consists of two layers made up of ligaments and cells that produce synovial fluid

0 of 5

A ____________________ consists of two layers made up of ligaments and cells that produce synovial fluid.
the concept used to explain the action of filaments in muscle contraction is the

0 of 5

The concept used to explain the action of filaments in muscle contraction is the _________________________.
the point of contact between a motor neuron and a skeletal muscular cell is called a an

0 of 5

The point of contact between a motor neuron and a skeletal muscular cell is called a(an) _________________________.
what type of joint immovable slightly movable or freely movable is being illustrated in figure 36 3

0 of 5

What type of joint—immovable, slightly movable, or freely movable—is being illustrated in Figure 36–3?
slide88

0 of 5

Each muscle fiber has an all-or-none response. How, then, can the strength of the muscle contraction vary?
slide93

0 of 5

Further explain these functions of the skeleton: allows movement, stores mineral reserves, and provides a site for blood cell formation.
why might a doctor x ray the wrist of a very short 17 year old boy even if there has been no injury

0 of 5

Why might a doctor X-ray the wrist of a very short 17-year-old boy, even if there has been no injury?
slide98

0 of 5

Describe the roles of acetylcholine and the enzyme that destroys this chemical at the neuromuscular junction.
slide99

0 of 5

When a musician is playing the violin, the muscles in the upper arms are working in pairs. Describe this dual action.