A&P Exam 2 Quizzes

Store adipose tissue

Some marrow of long bones is termed 'yellow' marrow under normal conditions. The function of yellow marrow is to

Gomphosis

The teeth are held in the jaw by what specific kind of joint?

Axial skeleton

The vertebral column is part of the

Hyperextension

Abnormal forced extension beyond normal range of motion is called

Released from troponin

After contraction has occurred the calcium is

Increased permeability of the membrane to sodium ions and increased intracellular concentration of potassium ions

Which of the following changes have the potential to dramatically affect the potential difference across the plasma membrane?

Intervertebral disk

Which of the following is a synovial joint?

Immunity

Which of the following is not a function of bone?

Motor unit

All the fibers in one muscle that a simple motor neuron innervates makes up a/an

Scoliosis

An abnormal lateral curvature of the spine is

A muscle produces constant tension during contraction

An isotonic contraction is described as

Osteoblasts form collagen and proteoglycans

Which of the following occurs in the formation of mineralized bone matrix?

Depolarization causes voltage-gated sodium ion channels to open

Which of the following situations occurs in electrically excitable cells?

The muscle produces increasing tension as it shortens

Concentric contractions occur when

Articular cartilage

Covers the ends of bones in synovial joints

Creatine phosphate

During resting conditions, ________ is synthesized to store energy?

May be temporary; epiphyseal plate

A synchondrosis

Whiplash

A traumatic hyperextension of the cervical vertebrae is referred to as

Increased vascularity

Select the term that does not belong with the others. immobilization increased vascularity muscle atrophy loss of nerve stimulation decrease in number of myofibrils

more; higher

Observing an EMG signal at different grip strengths shows that ___ motor units are firing at ____ frequency when you clench harder.

What is a triad?

A T tubule and two adjacent terminal cisternae

4,1,2,3,5

A sharp object penetrated a synovial joint. From the following list of structures, select the order in which they were penetrated. 1) tendon or muscle 2) ligament 3) fibrous capsule 4) skin 5) synovial membrane

All of these choices are correct

Bone remodeling may occur: as fractures heal as bones grow constantly during a persons lifetime as bones adjust to stress

Is responsible for the lubricating properties of synovial fluid

Hyaluronic acid

Muscle tissue shortens forcefully but lengthens passively

Identify the statement concerning general functional characteristics of muscle that is true.

The bones are held together by ligaments called interosseous membranes

In a syndesmosis

False

In the upper extremity flexors are found on the posterior side

bone to bone

Ligaments attach

The more electric activity is expected

The greater the grip strength of the muscle

Plane

The joint between the articular processes of adjacent vertebrae is a _____ joint.

True

The joint between the scapula and the humerus is a ball-and-socket joint

Gomphosis

The joint between the teeth and mandibular alveolus is an example of a