Biology is designed for multi-semester biology courses for science majors. It is grounded on an evolutionary basis and includes exciting features that highlight careers in the biological sciences and everyday applications of the concepts at hand. To meet the needs of today’s instructors and students, some content has been strategically condensed while maintaining the overall scope and coverage of traditional texts for this course. Instructors can customize the book, adapting it to the approach that works best in their classroom. Biology also includes an innovative art program that incorporates critical thinking and clicker questions to help students understand—and apply—key concepts.

By the end of this section, you will be able to:Describe the relationship of amplitude and frequency of a sound wave to attributes of soundTrace the path of sound through the auditory system to the site of transduction of soundIdentify the structures of the vestibular system that respond to gravity

By the end of this section, you will be able to:Discuss the different types of skeletal systemsExplain the role of the human skeletal systemCompare and contrast different skeletal systems

This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"Cholesteatoma is abnormal skin growth in the middle section of the ear. The resulting damage can lead to hearing loss and even facial paralysis. Unfortunately, no medical cure for cholesteatoma currently exists, and while surgical removal of excess tissue can be effective, 12 to 30% of patients show a recurrence of cholesteatoma. To understand how this abnormality forms and returns in some cases, researchers examined cholesteatoma tissue in the lab. Experiments showed that inflammatory signaling caused overactive skin cell growth. That signaling was largely mediated by the transmembrane protein TLR4, a molecule that helps orchestrate the innate immune response during infection and injury. Signs of cholesteatoma were effectively reduced by suppressing TLR4 activity with LPS-RS, a TLR4 antagonist and toxin derived from photosynthetic bacteria..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

This course explores the theory and practice of scientific modeling in the context of auditory and speech biophysics. Based on seminar-style discussions of the research literature, the class draws on examples from hearing and speech, and explores general, meta-theoretical issues that transcend the particular subject matter. Examples include: What is a model? What is the process of model building? What are the different approaches to modeling? What is the relationship between theory and experiment? How are models tested? What constitutes a good model?

Students are introduced to various types of hearing impairments and the types of biomedical devices that engineers have designed to aid people with this physical disability.

This lesson describes the function and components of the human nervous system. It helps students understand the purpose of our brain, spinal cord, nerves and the five senses. How the nervous system is affected during spaceflight is also discussed in this lesson.

In this course, experimental approaches to the study of hearing and deafness are presented through lectures, laboratory exercises and discussions of the primary literature on the auditory periphery. Topics include inner-ear development, functional anatomy of the inner ear, cochlear mechanics and micromechanics, mechano-electric transduction by hair cells, outer hair cells' electromotility and the cochlear amplifier, otoacoustic emissions, synaptic transmission, stimulus coding in auditory nerve responses, efferent control of cochlear function, damage and repair of hair-cell organs, and sensorineural hearing loss.

Topics for this course are based primarily on reading and discussions of original research literature that cover the analysis as well as the underlying physical and physiological mechanisms of acoustic signals in the auditory periphery. Topics include the acoustics, mechanics, and hydrodynamics of sound transmission; the biophysical basis for cochlear amplification; the physiology of hair-cell transduction and synaptic transmission; efferent feedback control; the analysis and coding of simple and complex sounds by the inner ear; and the physiological bases for hearing disorders.