Learn: AnP Exam 3 Study guide

The Vomer and the perpendicular plate of the ethmoid bone form part of the

A. Nasal septum

B. orbit

C. hard plate of the mouth

D. lacrimal fossa

Nasal septum

Chose the feature that only CERVICAL vertebrae have

A. Articular facets that face medially and laterally

B. Heart Shaped body

C. Hatchet shaped spinous process

D. Bifid spinous process

Bifid spinous process

Which portion of the fibula articulates with the talus?

A. the head

B. lateral malleolus

C. medial malleolus

D. calcaneus

lateral malleolus

Another name for the heel bone is the

A. cuboid

B. talus

C. calcaneus

D. navicular

calcaneus

Which cervical process can be felt along the midline of the back?

A. superior articular process

B. transverse process

C. inferior articular process

D. spinous process

spinous process

Which of the following does NOT contribute to joint stability

A. The amount of muscle tone applied to tendons that cross the joint

B. the amount of synovial fluid in the joint cavity

C. the shape of the articulating surfaces

D. the number and positioning of reinforcing ligaments

the amount of synovial fluid in the joint cavity

Which of the following choices represents a symphysis?

A. epiphyseal plate

B. intervertebral disc

C. interosseous membrane

D. alveolar sockets

intervertebral disc

What is moving a limb away from thr midline of the body along the frontal plane called

A. abduction

B. opposition

C. flexion

D. retraction

Abbduction

Which of the following is a pivot joint?

A. metacarpophalangeal (knuckle)

B. Proximal Radioulnar

C. Glenohumeral

D. inter carpal

Proximal Radioulnar

Which movement increases the joint angle between articulating bones?

A. flexion

B. extension

C. adduction

D. supination

extension

Which of the following is an example of a cartilaginous joint?

A. syndesmosis

B. synchondrosis

C. gomphosis

D. suture

synchondrosis

Looking up at the ceiling would be an example of ________

A. circumduction

B. extension

C. hyperextension

D. rotation

hyperextension

What are the menisci of the knee joints

A. cavities lined with articular (hyaline) cartilage

B. C-shaped pieces of fibrocartilage that help absorb shock delivered to the knee

C. tendon sheaths

D. small sacs containing synovial fluid

C-shaped pieces of fibrocartilage that help absorb shock delivered to the knee

Synarthrotic joints _________

A. are only found in adults

B. are immovable joints

C. characterized all cartilaginous joints

D. have large joint cavities

are immovable joints

Which joint is an example of sacrificed stability for the sake of greater freedom of movement?

A. humeroulnar

B. tibiofemoral

C. sternocostal

D. ghlenohumeral

ghlenohumeral

In an isometric contraction, the muscle _________

A. does not change in length but increase in tension

B. produces a constant level of tension while it lengthens

C. produces a constant level tension while it shortens

does not change in length but increase in tension

A ________ represents a single motor neuron and all of the muscle fibers it innervates

A. motor unit

B. fascicle

C. neuromuscular junction

D. sarcomere

motor unit

individual skeletal muscle fibers (cells) are surrounded by _________

A. epimysium

B. endomysium

C. perimysium

endomysium

three of the following events occur within skeletal muscle. one of them occurs in the motor neuron. Which one occurs in the motor neuron.

A. release of calcium ions from the terminal cisterns of the SR

B. T tubules conduct an action potential between cisterns of the SR

C. binding of calcium ions to troponin

D. voltage-gated calcium entry triggers exocytosis of acetylcholine

voltage-gated calcium entry triggers exocytosis of acetylcholine

Thick filaments of the sarcomere are composed of _________

A. tropomyosin

B. actin

C. myosin

D. troponin

myosin

The protein in sarcomeres that binds calcium is called _______

A. myosin

B. actin

C. tropomyosin

D. troponin

troponin

All of the following are functions of skeletal muscle tissue except ___________

A. hormone secretion

B. posture maintenance

C. joint stabilization

D. heat generation

A. hormone secretion

A somatic motor neuron releases ______ into the neuromuscular junction to stimulate muscle contraction.

A. acetylcholine

B. calcium

C. sodium

D. tropomyosin

A. acetylcholine

What part of the skeletal muscle fiber contains acetylcholine receptors

A. motor end plate

B. sarcoplasmic reticulum

C. myofilaments

D. t tubules

motor end plate

Excitation- contraction coupling represents the events within a skeletal muscle fiber whereby the electrical energy of an action potential is traduced, or converted into the mechanical energy of contraction. Which Ion is the "coupler" in E-C coupling?

A. calcium

B. potassium

C. sodium

D. chloride

calcium