PNB Practical I Exam Questions
and Answers All Correct
Which of the following bone does not articulate with any other bone?
Hyoid bone
Inferior nasal conchae
Nasal bone
Vomer
Zygomatic bone - Answer- hyoid bone
Kyphosis is a curving of the spine that causes a bowing or rounding of the back, which
leads to a hunchback or slouching posture. Which part of the spinal column has the
exaggerated curve in people with kyphosis?
Cervical vertebrae
Thoracic vertebrae
Lumbar vertebrae
Sacral vertebrae - Answer- thoracic vertebrae
When you chew gum, which of the following muscle is not used?
Masseter
Sternocleidomastoid
Digastricus
Temporalis - Answer- Sternocleidomastoid
Pivot joint of elbow enables what action?
A. Flexion of elbow
B. Extension of elbow
C. Pronation
D. Supination
E. Pronation and supination
F. Flexion and extension - Answer- E
Hinge joint of elbow enables what action?
A. Flexion of elbow
B. Extension of elbow
, C. Pronation
D. Supination
E. Pronation and supination
F. Flexion and extension - Answer- F
Select incorrect pairing of action and muscle
A. Biceps; flexion of forearm
B. Triceps; extension of forearm
C. Supraspinatus; medial rotation of shoulder
D. Infraspinatus; lateral rotation of shoulder - Answer- C
Which type of the following joints has the greatest freedom of movement?
planar joint
hinge joint
pivot joint
ball and socket joint - Answer- ball and socket
True or False. The supraspinatus and infraspinatus are named for their
origins/insertions on the spine of the scapula. - Answer- False; they are not attached to
the spine of the scapula, but located in fossa superior or inferior to it
In anatomical position, the radius is __________ to the ulna and the radial tuberosity
faces the ____________ direction.
medial; anterior
medial; posterior
lateral; anterior
lateral; posterior - Answer- lateral; anterior
_____ contraction is type of contraction of muscles that changes their length
isometric
isotonic - Answer- isotonic
When you are viewing the specimen on this microscope using the 40X objective, which
of the labeled parts should be used to adjust the focus? - Answer- Fine Adjustment
Knob
In this lab, when should you use the oil immersion objective?
When you need to improve magnification without losing resolution.
When you are viewing slides of epithelial tissue.
When you are measuring the cells on a slide.
and Answers All Correct
Which of the following bone does not articulate with any other bone?
Hyoid bone
Inferior nasal conchae
Nasal bone
Vomer
Zygomatic bone - Answer- hyoid bone
Kyphosis is a curving of the spine that causes a bowing or rounding of the back, which
leads to a hunchback or slouching posture. Which part of the spinal column has the
exaggerated curve in people with kyphosis?
Cervical vertebrae
Thoracic vertebrae
Lumbar vertebrae
Sacral vertebrae - Answer- thoracic vertebrae
When you chew gum, which of the following muscle is not used?
Masseter
Sternocleidomastoid
Digastricus
Temporalis - Answer- Sternocleidomastoid
Pivot joint of elbow enables what action?
A. Flexion of elbow
B. Extension of elbow
C. Pronation
D. Supination
E. Pronation and supination
F. Flexion and extension - Answer- E
Hinge joint of elbow enables what action?
A. Flexion of elbow
B. Extension of elbow
, C. Pronation
D. Supination
E. Pronation and supination
F. Flexion and extension - Answer- F
Select incorrect pairing of action and muscle
A. Biceps; flexion of forearm
B. Triceps; extension of forearm
C. Supraspinatus; medial rotation of shoulder
D. Infraspinatus; lateral rotation of shoulder - Answer- C
Which type of the following joints has the greatest freedom of movement?
planar joint
hinge joint
pivot joint
ball and socket joint - Answer- ball and socket
True or False. The supraspinatus and infraspinatus are named for their
origins/insertions on the spine of the scapula. - Answer- False; they are not attached to
the spine of the scapula, but located in fossa superior or inferior to it
In anatomical position, the radius is __________ to the ulna and the radial tuberosity
faces the ____________ direction.
medial; anterior
medial; posterior
lateral; anterior
lateral; posterior - Answer- lateral; anterior
_____ contraction is type of contraction of muscles that changes their length
isometric
isotonic - Answer- isotonic
When you are viewing the specimen on this microscope using the 40X objective, which
of the labeled parts should be used to adjust the focus? - Answer- Fine Adjustment
Knob
In this lab, when should you use the oil immersion objective?
When you need to improve magnification without losing resolution.
When you are viewing slides of epithelial tissue.
When you are measuring the cells on a slide.
