Exam (elaborations)
VBSC 421 Exam 1_ The Skull.
- Course
- Institution
VBSC 421 Exam 1_ The Skull.
[Show more]
Seller
Follow
modockochieng06
Content preview
VBSC 421 Exam 1: The SkullForamen - ANS-an opening in bone or cartilage through which nerves and blood
vessels may pass
Fossa - ANS-a depression or hollow in which another organ may sit
Process - ANS-a projection or outgrowth of bone or tissue
Suture - ANS-a rigid joint between skull bones
SHARK skull - ANS-chondrocranium and splanchnocranium ONLY (no dermatocranium)
Shark splanchnocranium - ANS-- Jaws, support for gills
Shark chondrocranium - ANS-- Brain and sensory structures
- Eye and otic capsules
Basal Plate (shark) - ANS-*chondrocranium*
wide, flattened bottom portion of skull (ANTERIOR)
Branchial arches (aka visceral arches) (shark) - ANS-*splanchnocranium*
skeletal support for the gills
surrounds the pharynx
Carotid foramen (shark) - ANS-*chondrocranium*
carotid arteries pass through this
Epiphyseal foramen (shark) - ANS-*chondrocranium*
pineal organ or eye projects through this (located dorsally)
Eye orbits (shark) - ANS-*chondrocranium*
house the eyeballs
(3)
Foramen magnum (shark) - ANS-*chondrocranium*
the hole in the base of the skull through which the spinal cord passes
Gill rakers (shark) - ANS-*splanchnocranium*
, prevent food from entering respiratory chambers (larger)
Gill rays (shark) - ANS-*splanchnocranium*
strengthen the branchial septa (smaller projections)
Hyoid arch (shark) - ANS-*splanchnocranium*
2nd modified visceral arch
Hyomandibular cartilages (shark) - ANS-*splanchnocranium*
allows for the major suspension of the jaw from the skull (Hyostolic type of jaw
suspension)
becomes STABES in quadropeds
Meckel's cartilage (shark) - ANS-*splanchnocranium*
forms lower jaw
Nasal capsules (shark) - ANS-*chondrocranium*
holds the olfactory system
Occipital condyles (shark) - ANS-*chondrocranium*
articulate with the first trunk vertebra
Optic foramen (shark) - ANS-*chondrocranium*
optic nerve passes through this
Otic capsules (shark) - ANS-*chondrocranium*
hearing and balance (equilibrium) --> forms semicircular canals
Palatoquadrate (shark) - ANS-*splanchnocranium*
forms upper jaw
Rostrum (shark) - ANS-*chondrocranium*
forms "nose" profile
NECTURUS (mudpuppy) skull - ANS-Chondrocranium, splanchnocranium, and
dermatocranium
Angular (necturus) - ANS-*splanchnocranium*
part of mandible, at hinge of jaw
(11)
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 or Stuvia-credit 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 modockochieng06. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
80461 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now