Concept explainers
Name the bones that form the anterior cranial fossa.
To review:
The bones constituting the anterior cranial fossa.
Introduction:
The human skeletal system is divided into axial and appendicular skeleton. The limbs, pectoral girdle, and pelvic girdle are the components of the appendicular skeleton. The thoracic cage, skull, and vertebral column constitute the axial skeleton. The skull protects as well as houses the brain.
Explanation of Solution
The anterior cranial fossa is formed by frontal, sphenoid, and ethmoid bones. The skull is composed of facial and cranial bones. The cranial bones form the cranium that protects the brain as well as allows the attachment of head and neck muscles. The inferior portion of the cranium, also called the cranial base, constitutes the cranial fossae that closely fits with the brain. Bony ridges are situated on the internal surface of cranial fossae, which cause the segmentation of the cranial fossae into anterior, middle, and posterior cranial fossae. The cranial vault is the superior portion of cranium, which covers the brain.
The cribriform plates located on the superior region of ethmoid bone form the floor of anterior cranial fossae. The lesser wings of sphenoid bone constitute some part of the floor of anterior cranial fossae. The internal surface of frontal bone is responsible for giving rise to the region of anterior cranial fossa that supports the frontal lobe of the brain.
Want to see more full solutions like this?
Chapter 7 Solutions
Human Anatomy (8th Edition)
- Hydrogen bonds play an important role in stabilizing and organizing biological macromolecules. Consider the four macromolecules discussed. Describe three examples where hydrogen bond formation affects the form or function of the macromolecule.arrow_forwardImagine you are a botanist. Below are characteristics of a never-before described plant species recently identified as part of the ‘All Taxa Biodiversity Inventory’ (ATBI). Field Notes: Specimen collected from shaded area along stream in South Cumberland State Park (Grundy County, TN). Laboratory Analysis: Body: Large leaves emerging from underground rhizome. Size: 63 cm Chromosomal Analysis: Plant body is diploid—chromosome number of 44. Lignin test: Positive Cuticle: Present Leaves: Present—large with branched veins. Underside has sori (containing haploid spores). Roots: Present—branch from the inside. Stem: Present—vascular tissue (xylem & phloem) present. Life History: Diploid sporophyte dominant generation. Haploid spores germinate into heart-shaped, haploid, gametophyte. Water required for fertilization; no seed is produced. Diploid zygote develops into sporophyte. Explain which domain, kingdom and phylum you believe this plant should be classified…arrow_forwardCUÁ Glycine A C C Newly formed molecule Glycine Arginine Proline Alanine A C C CC G GGAUUGGUGGGGC Structure X I mRNAarrow_forward
- Adaptations to a Changing Environment Why is it necessary for organisms to have the ability to adapt? Why is the current environment making it difficult for organisms like the monarch butterfly to adapt? Explain how organisms develop adaptations.arrow_forwardArtificial Selection: Explain how artificial selection is like natural selection and whether the experimental procedure shown in the video could be used to alter other traits. Why are quail eggs useful for this experiment on selection?arrow_forwardDon't give AI generated solution otherwise I will give you downwardarrow_forward
- Hello, Can tou please help me to develope the next topic (in a esquematic format) please?: Function and Benefits of Compound Microscopes Thank you in advance!arrow_forwardIdentify the AMA CPT assistant that you have chosen. Explain your interpretation of the AMA CPT assistant. Explain how this AMA CPT assistant will help you in the future.arrow_forwardwhat is the difference between drug education programs and drug prevention programsarrow_forward
- What is the formula of Evolution? Define each item.arrow_forwardDefine the following concepts from Genetic Algorithms: Mutation of an organism and mutation probabilityarrow_forwardFitness 6. The primary theory to explain the evolution of cooperation among relatives is Kin Selection. The graph below shows how Kin Selection theory can be used to explain cooperative displays in male wild turkeys. B When paired, subordinant males increase the reproductive success of their solo, dominant brothers. 0.9 C 0 Dominant Solo EVOLUTION Se, Box 13.2 © 2023 Oxford University Press rB rB-C Direct Indirect Fitness fitness fitness gain Subordinate 19 Fitness After A. H. Krakauer. 2005. Nature 434: 69-72 r = 0.42 Subordinant Dominant a) Use Hamilton's Rule to show how Kin Selection can support the evolution of cooperation in this system. Show the math. (4 b) Assume that the average relatedness among male turkeys in displaying pairs was instead r = 0.10. Could kin selection still explain the cooperative display behavior (show math)? In this case, what alternative explanation could you give for the behavior? (4 pts) 7. In vampire bats (pictured below), group members that have fed…arrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education