WSU Bio 315 Lab Exam 1 (100% correct and graded A+)

Cranial cavity - Where brain is Calvaria - The "skull cap" Cranial Base - The floor of the cranial cavity Anterior Cranial Fossa - Top Middle Cranial Fossa - Middle Posterior Cranial Fossa - Bottom, back of head Orbits - "Eye sockets" Nasal cavities - Space where nose is Bony nasal septum - Line down center, divides Piriform aperture - Piriform = pear shaped Outside/outline of nose Hard palate - Roof of mouth, "brain freeze" Zygomatic arch - Bone in cheek Infratemporal fossa - Space behind zygomatic archCoronal Suture - Corona = crown, where crown would sit on head, side to side front Lambdoidal Suture - Shaped like the Greek letter lambda, curved back Sagittal Suture - Sagittarius is the archer--think of an arrow, straight down center, cuts in half Squamous Suture - Scaly (like fish), side of skull, where ear would be Supraorbital Margin - Above eye Parietal Bones - Top of head Occipital Bone - Back of head External Occipital Protuberance - Occipital Condyles - Articulate with the first cervical vertebra, bumps on back, smooth Nuchal lines - Nucha = nape of neck, back side Mastoid Process - Behind zygomatic processes Styloid Process - Pointy, medial anterior Zygomatic Process - Back of cheekPetrous Portion - Pinch, drop-off between steps 2 and 3, contains ear organs of hearing and balance Mandibular Fossa - Depression for mandible to sit Crista Galli - "cock's comb," ridge on top Cribriform Plate - Plate holes Perpendicular Plate - Helps form the bony nasal septum, hook Orbital Plate - Medial wall of orbit, flat surfaces, smooth Superior and Middle Conchae - S= small inside M= below superior Greater Wing - Curved structures, lateral Lesser wing - Pointy, smaller, medial Sella Turcica - Saddle in center Pterygoid Processes - Legs of the butterfly; 2 below wings