Questions and Answers
What type of movement is caused by the contraction of the left sternocleidomastoid as the head turns toward the right?
Contralateral
What is the distal attachment of all three heads of the triceps brachii?
Olecranon
Which of the following is the most lateral bone in the forearm?
What term refers to a muscle that prevents a bone from moving during an action?
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What are the proximal attachments of the soleus? Check all that apply.
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The auditory ossicles include which of the following? Check all that apply.
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What is the primary action of the masseter?
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Which part of the ischium supports the body when sitting?
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The vertebral column consists of a chain of 30 vertebrae with intervertebral discs of fibrocartilage between most of them.
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What is the action of the orbicularis oris?
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The action for the vastus lateralis muscle is to __________ the knee.
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The concave surface of the ulna that wraps around the trochlea of the humerus is the __________ ___________.
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Study Notes
Movement and Anatomy
- Contraction of the left sternocleidomastoid leads to contralateral head movement, turning the head towards the right.
- Proximal attachments of the soleus include the medial and lateral condyles of the femur and ischial tuberosity.
Muscles and Bones
- The olecranon is the distal attachment point for all three heads of the triceps brachii.
- Dorsiflexion of the foot is primarily achieved by muscles located in the anterior compartment of the leg.
- The action of the masseter muscle is the elevation of the mandible during chewing.
- The quadriceps femoris consists of various muscles that can be labeled and matched to their functions.
Skeletal Features
- Key anatomical features of the scapula and femur/patella need to be accurately labeled for anatomical studies.
- Understanding the auditory ossicles includes recognizing that the hyoid and mastoid are part of this system.
- The thoracic cage consists of several bony structures essential for protection and support of the thorax.
- The ischial tuberosity supports the body while sitting, a vital feature of the ischium in the pelvis.
Muscle Function and Names
- A fixator muscle prevents movement of a bone during an action, stabilizing joints.
- The radius is the most lateral bone of the forearm, playing a critical role in forearm and wrist movement.
- The orbicularis oris muscle functions to close and protrude the lips, such as in kissing gestures.
Skull and Vertebral Column
- The vertebral column incorrectly represented as consisting of 30 vertebrae; it actually has 34 vertebrae, with fibrocartilage intervertebral discs.
- Identifying bones of the skull in lateral view, and understanding developmental changes from infancy to childhood, is essential for anatomy.
- Knowledge of cranial fossas is crucial, as they house specific brain structures.
Pelvic and Limb Anatomy
- Features of the male and female pelvis must be distinguished through correct labeling.
- The tibia is recognized as the weight-bearing bone of the lower leg in the crural region.
- Relationships in the shoulder and upper limb bones are important for understanding arm movement.
General Notes
- Correct labeling of facial muscles enhances understanding of expression dynamics.
- The pectoral and brachial muscles are fundamental to upper body strength and movement.
- Knowledge about bone structure and anatomical features assists in comprehensive anatomical education.
Studying That Suits You
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Description
Test your knowledge on key anatomical features and terms with these flashcards from Chapter 8 and 10. Activities include labeling structures of the scapula, femur, patella, and understanding muscular movements like contralateral action. Perfect for students preparing for anatomy exams.
