Skulls - The Basics
Comparative Anatomy
What the tooth?
The chromatic zygomatic
Randoms
100
The only moveable joint of the face involves which bone(s)?
The TMJ - Temporomandibular Joint
The mandible/lower jaw
100
How does the division of the vertebrate skeleton into axial and appendicular components reflect functional specialization?
Appendicular skeleton supports locomotion, axial protects vital organs.
100
What organisms have the sharpest teeth of all mammals?
double bonus ("Frugivores")
100
The zygomatic bone is often referred to as the __________________________________ in anthropocentric (human) contexts.
Cheek Bones
100
What word is referring to the function of an anatomical feature of an organism?
Physiology
200
How many bones are in the average mammalian skull?
22
200
The rostrum is what part of the skull?
From the eyes to the end of the snout/nose and mouth area.
200
What tooth or teeth in the human body is conical?
canines are cone-shaped
200
True or false: Bones are naturally white.
Trick question - they can be, but they are all sorts of colors
200
The lever at the base of the stage of microscopes that dictates how much light reaches the slide is called the _____________________________________.
Iris diaphragm
300
Considering the skull’s multiple functions, what biological trade-off is most likely to occur in species transitioning from aquatic to terrestrial environments?
A) Increased skull mobility at the expense of brain protection.
B) Enhanced sensory organ size with reduced jaw strength.
C) Greater jaw complexity to improve feeding efficiency while maintaining sensory function.
D) Reduction in skull complexity to prioritize buoyancy over feeding.
C) Greater jaw complexity to improve feeding efficiency while maintaining sensory function.
300
If an animal has a thicccc zygomatic arch, what is their primary chewing muscle?
The masseter
300
Organisms that have 2 sets of teeth (deciduous teeth) through the entirety of their lives are called ______________________.
Diphodonts, like humans
300
What functions do bones have in the various life forms that they are in?
Provide rigidity and shape, they produce red blood cells, they help with movement by acting as fulcrums and leavers in joints, and they protect vital organs.
300
True or false: There are multiple different cell types in most multicellular organisms.
True: humans have roughly 200 different cell types in the body, but can be specified into 1,000 different jobs.
400
Jaw suspension types influence feeding strategies. Which jaw suspension would most likely maximize bite force but limit jaw mobility?
A) Hyostylic suspension
B) Amphistylic suspension
C) Autostylic suspension
D) Streptostylic suspension
A
400
A cladogram is what?
A tree-shaped arrangement of organisms that shows common shared characteristics
400
Teeth morphology varies widely among vertebrates. What does the presence of heterodont dentition in mammals primarily indicate about their ecological niche?
Adaptation to diverse diets requiring different types of teeth for processing food.
400
A leaf that has leaflets attached to a central rachis is called a __________________ leaf.
compound leaf
500
Are teeth bones?
No, teeth are accessory ectodermal organs, and are covered in enamel - not periosteum.
500
The axial skeleton is what part of the body?
The bones and cartilage making up the torso and head region.
500
The hard and porous substance of teeth under the enamel is the _____________________.
Dentin/dentine
500
What does the C in Mr. C stand for (correct spelling only)?
CANTRELL