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
