All muscles of facial expression are innervated by Answer-facial nerve (CN VII)
Medial and Lateral Pterygoids Answer-O: sphenoid bone
I: mandible and condylar process of mandible
, Oakland University BIO2100 Chris Kauhn Exam
2; Questions & Answers 100% Verified
A: grinding movement
IN: mandibular branch
Sternocleidomastoid Answer-O: manubrium of sternum
I: mastoid process
A: flexion of the head
IN: CN XI
Trapezius Answer-Origin: Skull, cervical and thoracic vertebrae
Insertion: Clavicle, acromion, spine of scapula
Action: Upward rotation, elevation and depression of the scapula
Innervation: (CN XI) Accessory nerve
Deltoid Answer-Origin: spine of the scapula, acromion, clavicle
Insertion: deltoid tuberosity of the humerus
Action: flexion, extension, abduction medial and lateral rotation of the arm at the shoulder joint
Innervation: Axillary nerve
Pectoralis Major Answer-Origin:
Clavicular part- medial half of the clavicle
Sternocostal part- sternum and first 6 costal cartilages
Insertion: Crest of greater tubercle of humerus
Action: adduction, medial rotation and flexion of the arm at the shoulder joint
Innervation: medial and lateral pectoral nerves
Pectoralis Minor Answer-Origin: Ribs 2-5
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller GOLDTUTORS. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £10.37. You're not tied to anything after your purchase.
