WGU D312 ANATOMY AND PHYSIOLOGY I WITH LAB LAB QUESTIONS PART 2 SECTIONS 3 AND 4
QUESTIONS AND ANSWERS ALREADY GRADED A+. 100% Verified Solutions | Updated Per Latest Guidelines |
Graded A+
CORE DOMAINS
The Appendicular Skeleton and Joints
Muscle Tissue Structure and Function
Muscle Contraction and Neuromuscular Junction
Muscle Metabolism and Energy Systems
Muscle Mechanics and Fiber Types
Electromyography (EMG) and Muscle Physiology
Articulations and Movement Classification
Anatomical Terminology and Practical Application
INTRODUCTION
This comprehensive WGU D312 Anatomy and Physiology I with Lab examination is designed to assess the
student's understanding of the appendicular skeleton, joints, and muscle physiology. It evaluates knowledge of
muscle structure, contraction mechanisms, metabolism, and the neuromuscular junction. The laboratory
component emphasizes practical application through questions related to electromyography (EMG) and
musculoskeletal anatomy. Candidates will be challenged to analyze the relationship between structure and
,function, understand the mechanisms of muscle contraction, and apply anatomical terminology to real-world
scenarios. This rigorous assessment mirrors the complexity of the laboratory and lecture components of the course.
SECTION ONE
Questions 1–100
Question 1
The appendicular skeleton includes all of the following EXCEPT:
A. The pectoral girdle
B. The pelvic girdle
C. The skull
D. The upper and lower limbs
🟢 Correct Answer:
C. The skull
🔴 RATIONALE:
The appendicular skeleton consists of the bones of the upper and lower limbs, the pectoral girdle, and the
pelvic girdle. The skull is part of the axial skeleton, which also includes the vertebral column and rib cage.
,Question 2
Which of the following bones is part of the pectoral girdle?
A. Scapula
B. Femur
C. Tibia
D. Os coxa
🟢 Correct Answer:
A. Scapula
🔴 RATIONALE:
The pectoral girdle consists of the scapula (shoulder blade) and the clavicle (collarbone). The femur and tibia are
bones of the lower limb; the os coxa is part of the pelvic girdle.
Question 3
The joint that allows for the greatest range of motion is the:
A. Hinge joint
B. Pivot joint
C. Ball-and-socket joint
D. Saddle joint
, 🟢 Correct Answer:
C. Ball-and-socket joint
🔴 RATIONALE:
Ball-and-socket joints (e.g., shoulder and hip) allow for the greatest range of motion, including flexion,
extension, abduction, adduction, rotation, and circumduction. Hinge joints (elbow) allow only flexion and
extension; pivot joints allow rotation; saddle joints allow limited motion.
Question 4
The type of muscle tissue that is under voluntary control is:
A. Cardiac muscle
B. Smooth muscle
C. Skeletal muscle
D. Visceral muscle
🟢 Correct Answer:
C. Skeletal muscle
🔴 RATIONALE:
Skeletal muscle is under voluntary control, meaning it is consciously controlled by the somatic nervous system.
Cardiac and smooth muscles are involuntary, controlled by the autonomic nervous system.
QUESTIONS AND ANSWERS ALREADY GRADED A+. 100% Verified Solutions | Updated Per Latest Guidelines |
Graded A+
CORE DOMAINS
The Appendicular Skeleton and Joints
Muscle Tissue Structure and Function
Muscle Contraction and Neuromuscular Junction
Muscle Metabolism and Energy Systems
Muscle Mechanics and Fiber Types
Electromyography (EMG) and Muscle Physiology
Articulations and Movement Classification
Anatomical Terminology and Practical Application
INTRODUCTION
This comprehensive WGU D312 Anatomy and Physiology I with Lab examination is designed to assess the
student's understanding of the appendicular skeleton, joints, and muscle physiology. It evaluates knowledge of
muscle structure, contraction mechanisms, metabolism, and the neuromuscular junction. The laboratory
component emphasizes practical application through questions related to electromyography (EMG) and
musculoskeletal anatomy. Candidates will be challenged to analyze the relationship between structure and
,function, understand the mechanisms of muscle contraction, and apply anatomical terminology to real-world
scenarios. This rigorous assessment mirrors the complexity of the laboratory and lecture components of the course.
SECTION ONE
Questions 1–100
Question 1
The appendicular skeleton includes all of the following EXCEPT:
A. The pectoral girdle
B. The pelvic girdle
C. The skull
D. The upper and lower limbs
🟢 Correct Answer:
C. The skull
🔴 RATIONALE:
The appendicular skeleton consists of the bones of the upper and lower limbs, the pectoral girdle, and the
pelvic girdle. The skull is part of the axial skeleton, which also includes the vertebral column and rib cage.
,Question 2
Which of the following bones is part of the pectoral girdle?
A. Scapula
B. Femur
C. Tibia
D. Os coxa
🟢 Correct Answer:
A. Scapula
🔴 RATIONALE:
The pectoral girdle consists of the scapula (shoulder blade) and the clavicle (collarbone). The femur and tibia are
bones of the lower limb; the os coxa is part of the pelvic girdle.
Question 3
The joint that allows for the greatest range of motion is the:
A. Hinge joint
B. Pivot joint
C. Ball-and-socket joint
D. Saddle joint
, 🟢 Correct Answer:
C. Ball-and-socket joint
🔴 RATIONALE:
Ball-and-socket joints (e.g., shoulder and hip) allow for the greatest range of motion, including flexion,
extension, abduction, adduction, rotation, and circumduction. Hinge joints (elbow) allow only flexion and
extension; pivot joints allow rotation; saddle joints allow limited motion.
Question 4
The type of muscle tissue that is under voluntary control is:
A. Cardiac muscle
B. Smooth muscle
C. Skeletal muscle
D. Visceral muscle
🟢 Correct Answer:
C. Skeletal muscle
🔴 RATIONALE:
Skeletal muscle is under voluntary control, meaning it is consciously controlled by the somatic nervous system.
Cardiac and smooth muscles are involuntary, controlled by the autonomic nervous system.
